-y •P '7' /.•;-.^--' '■&':■ V ri--_ -■ ,, •■-^-,- ^ V ' ' ' ^ ' <^ -0 ^ ' ■ ^ -^ V , ' " " ^ c- V rt « c '^ ^~ V* I. ' * ^ -r ^ , 1 « •:; ^ 'A ^ • .; '<■ /■" \ ^ ■ n ,\ .0 . ^^ ■ '" \. ,.0'^ •"' •V> -i ' ^^0^ ^ i' S '^^ ^ ;. •X * •<■ J .-;/:„,. -V A- -f ., ■<'\ ""'■J-' ■■■ -S^'^. ^ .^^■'^ r^'' '^^. .0- , s> • r v'" ^ .■ , • • o , ■ \ '^' '^ ■x'' '%^ ■■■■ " ' - * ^ -. - .-iV , V- .'^- J '^ .'=^^'' ■^':^ G" ^ .^i ,, -Z' *-,,,- ,0' '-'-.- *-;"r'^ .--.^ "o - .. ■- .0-' ^^ .'V ■ ■ - • -■■^. .■■:■ ,,-■,•■, a - ',- .'\ '': -^^ '^- \ ' ■'"' "'V, ,-t> '^ VETERINARY SCIENCE ASSOCIATION OF AMERICA VETERINARY MEDICINES THEIR ACTIONS. USES AND DOSE BY GEORGE F. KORINEK, V. S., B. V. S. Graduate of the Ontario Veterinary College. Graduate from the Veterinary Department of the University of Toronto, Can- ada. Member of the Science Association of the Ontario Veter- inary College. Registrar of the Veterinary Science Association of America. Ten years of Practical Experience in Veterinary Medicine and Surgery. PUBLISHED BY THE VETERINARY SCIENCE ASSOCIATION OF AMERICA VETERINARY SCIENCE ASSOCIATION OF AMERICA VETERINARY MEDICINES THEIR ACTIONS. USES AND DOSE BY GEORGE F. KORINEK, V. S., B. V. S. Graduate of the Ontario Veterinary College. Graduate from the Veterinary Department of the University of Toronto, Can- ada. Member of the Science Association of the Ontario Veter- inary College. Registrar of the Veterinary Science Association of America. Ten years of Practical Experience in Veterinary Medicine and Surgery. PUBUSHED BY THE VETERINARY SCIENCE ASSOCIATION OF AMERICA COPYRIGHT 1917 by the VETERINARY SCIENCE ASSOCIATION OF AMERICA #3 (Q)Ci. A -+ ■'' o 7 1 JAN 22 1917 PREFACE There is no scarcity of excellent works on Veterinary materia medica and Therapeutics. Many of these will well repay the student for the time spent in mastering them, but none seem to meet the wants of the Veterinary Practitioner and Student for whom this work is primarily intended. It has been my endeavor to find, and bring together in available form, some of the facts regarded as of value to those upon whom the stockman must depend, to a great extent, for important services when sickness comes upon our dumb friends — the domestic animals. A few publications have been consulted, and in some instances quoted. It has not been practicable to give proper credit for use of ideas and language in each in- stance, but a general acknowledgment is here made. List of publications consulted and in some instances quoted: United States Dispensatory (by Wood). Veterinary Medicines (by Dun). Veterinary Materia Medica and Therapeutics (by Winslow). Veterinary Materia Medica, Therapeutics and Toxicology (by Quitman). George F. Korinek, V. S., B. V. S. SUMMARY OF VETERINARY MATERIA MEDICA, THERAPEUTICS AND TOXICOLOGY Materia Medica^ derived from two Latin words signifying medical material, the science which treats with medicine, their source or origin, their derivatives, physical and chemical properties, their method of prep- aration and administration, their dose, physiological and toxicological effects. Therapeutics, derived from the Greek, Therapevo, meaning to serve or attend the sick, is that branch of knowledge which treats of the application of all means — medical or otherwise — to the cure of disease or relief of pain. Toxicology, derived from the Greek Toxikon, a poison, is that branch of knowledge which treats of the nature, actions, detection and treatment of poisons. A medicine is an agent of animal, vegetable, or min- eral origin used for the cure of disease or relief of pain. Drug, derived from the Dutch, Droog, meaning dry, is now used synonymously with medicine although originally referring to an herb or dried medical plant. GENERAL ACTIONS OF MEDICINES Alterative. — A medicine that alters the process of nutrition, so as to overcome morbid conditions of the body as Arcenous Acid, Potassium Iodide, etc. Anaesthetic. — Medicines used to produce insensi- bility to pain, and they are divided into Local and Gen- eral Anaesthetics. General Anaesthetics. — Are inhaled and carried by the blood to the brain and spinal cord, where they paralyze the nerve centers, cause muscular relaxation and finally produce entire suspension of sensation and power of motion, together with a loss of consciousness, and apparent life, except breathing and the action of the O VETERINAEY MEDICINES heart. They comprise Nitrous Oxide Gas, Ether and Chloroform, etc. Local Anaesthetics. — As a rule, are injected hypodermically or applied to open wounds. They cause temporary loss of local or circumscribed sensation by paralyzing the sensory nerves. When applied in the form of liniments they resemble anodynes, but act more promptly and profoundly. They comprise Cocaine, Eucaine, etc. Anai-gesic. — A medicine used to relieve pain, as Opium, etc. Anaphrodisiac— A medicine used to produce ab- sence or impairment of sexual appetite, as Potassium Bromide, etc. Anhidrotic. — A medicine that diminishes the secre- tion of persj^iration as Belladonna, etc. Anodyne. — A medicine that lessens sensibility to pain, by diminishing the excitability of nerve centers, as Cannabis Indica, Chloral Hydrate, etc. Anodynes Local. — Are drugs that diminish pain bj^ acting locally on sensory nerves, and are applied in the form of a liniment over painful swellings, as Belladonna, Aconite, Opium, hot and cold packs, etc. Antacid. — A medicine that counteracts or neutral- izes acidity of the stomach or intestines as liquor Potas- sium, Sodium Carbonate and Bicarbonate, etc. Antagonistic. — A medicine w^hich counteracts the action of another medicine in the system, as would Potassium Bromide and Nux Vomica or Strychnine. Anthelmintic. — A medicine efficiently destroying or expelling worms or preventing their development, as Santonin, Arecae Nut, etc. Antidote. — A substance preventing or counteract- ing the action of a poison. Antidotes are distinguished as: chemical, those that change the chemical nature of the poison; mechanical, those that prevent absorption of poison; physiologic, those that counteract the effects of poison by producing other effects. ACTIONS, USES AND DOSE / Antiemetic. — A medicine which prevents or arrests vomiting, as Bismuth Subnitrate. Antifebrile. — A medicine that reduces tempera- ture, as Acetanilid, etc. Antiferement. — A medicine which prevents the formation of gases, as Sodium Bicarbonate, Turpen- tine, etc. Antigaxactic— A medicine which lessens the secre- tion of milk, as Belladonna, Tannin, etc. Antiparasitic. — An agent which destroys and re- pels insects, as essential oils, powdered tobacco, sulphur and naphthaiin, etc. Antiperiodic. — A medicine that tends to prevent the periodic recurrence of a disease, as Quinine Sulphate, Arsenous Acid, etc. Antiperistaltic or Antiperist^u:.sis. — Are medi- cines that produce compression of peristalsis or the worm-like movement of the intestines by which method the alimentary canal propels its contents, as Opium. Antiphlogistic. — A medicine or agent subduing or reducing inflammation or fever, as in bloodletting, applications of cold packs or the administration of Aconite, Acetanilide, etc. Antirheumatic. — A medicine tliat prevents or cures rheumatism, as Sodium Salicylates, etc. Antipyretic. — A medicine which reduces body tem- perature in fever, as Quinine Sulphate, Salicylic Acid, etc. Antiseptic. — A medicine which arrests putrefaction on or in the body, or hinders septic decomposition by kill- ing the germs that produce it or by checking their de- velopment, as Carbolic Acid, Zinc Sulphocarbolates, etc. Antispasmodic. — A medicine which prevents or re- moves spasmodic contraction of voluntary or involun- tary muscles, as Belladonna, Valerian, Chloral Hydrate, etc. Antitoxin. — A counter poison or antidote gener- ated within the body to counteract the toxins of bacteria. Antitoxins are frequently injected hypodermically in 8 VETERINARY MEDICINES the treatment of certain infectious diseases and also to immunize against disease, as Tetanus Antitoxin for the treatment of tetanus or lockjaw, etc. Antivenene. — A name applied to blood-serum of animals rendered immune against snake-poison owing to its antidotal properties. Antizymotic. — A medicine preventing fermenta- tion, as Salicylic Acid, etc. Aperient. — A medicine possessing a mild laxative or purgative effect, as Rochelle Salts, etc. Aphrodisiac. — A medicine which stimulates sexual appetite, as Cantharides, Nux Vomiva, Phosphorus, Al- cohol and general tonics, etc. Aromatic. — A medicine characterized by a fragrant taste or odor, as Aromatic Spiritus of Ammonia, Ginger and the essential oils, etc. Astringent. — A medicine which contracts vessels and arrests discharges, as Tannic Acid, Ergot, etc. Auxiliary. — A medicine that assists the action of another, as Chloral Hydrate would assist Bromide of Potassium in checking excitability. Bitter. — A medicine with a bitter taste, stimulating the gastro-intestinal secretions without materially affect- ing the general system, as Qussia Gentian, etc. Blennorrhagic. — A medicine which increases the secretions of mucus, as Eucalyptus, Balsam Tulo, etc. Blister. — Aii agent which, when applied over the skin, produces vesicles resulting from local inflamma- tory exudate of serous fluid between the epidermis and true skin, as applications of Cantharides, etc. Bolus. — A large pill or a round mass of food pre- pared by the mouth for swallowing. BouiLON. — A nutritive medium for the culture of micro-organisms prepared from finely chopped beef or beef extract. Cachexia. — A deprived condition of general nutri- tion, due to serious diseases, as Tuberculosis, Serofula, Syphilis, Cancer, etc. Caeefacient. — A medicine applied externally to ACTIONS, USES AND DOSE V produce a sensation of warmth to the part to which it is apphed, as Turpentine, Mustard, Capsicum, etc. Calmant. — A medicine that reduces functional ac- tivity, as Bromide of Potassium, Aconite, etc. Calmative. — A medicine which has a quieting or a sedative effect, as Morphine, Cannibus Indica, etc. Calorifacient or Calorific. — A heat producing substance which has the power of developing heat in the body, as Cod Liver and Olive Oil, Fats, etc. Cardiac Depressant or Sedative. — A medicine which lessens the force and frequency of the heart's action as Aconite, Potassium Nitrate, etc. Cardiac Sti]mulant. — A medicine that increases the force and frequency of the heart's action when in a depressed condition, as Alcohol, Nux Vonica, Ether, etc. Cardiac Tonics. — Are medicines that do not act as quickly as cardiac stimulants, but they strengthen the heart muscles which regulate pulsation, as Digitalis, Nux Vomica, etc. Carminative. — A medicine that allays pain by caus- ing the expulsion of gases from the alimentary canal, as Aromatic Spiritus of Ammonia, Asafetida, Turpen- tine, etc. Cataleptic. — A medicine causing animals to lose control of their muscles, as Cannibus Indica, etc. Catalytic. — A medicine supposed to break down, destroy or counteract morbid agencies existing in the blood, as Calomel, Arcenous Acid, etc. Cathartic. — A medicine which hastens the evacua- tion of the bowels, as Aloes, Castor Oil, etc. Cathartic Cholagogue. — A medicine that stimu- lates the evacuation of the intestines and the flow of bile at the same time, as Podophyllin, etc. Cathartic Drastic. — A medicine which produces violent action of the intestines with griping and pain, as Jalap, Arecoline, etc. Cathartic Hydragogue. — A medicine that causes abundant watery discharges of feces, as Commony Elaterium, etc. 10 VETERINARY MEDICINES Cathartic Saline. — A medicine which increases intestinal secretions and prevents re-absor}Dtion, and mechanically excites peristaltic action, as j\Iagnesium Sulphate, etc. Cathartic Simple. — A medicine that is more active then a laxative, but is accompanied by some griping; it causes active T>eristalsis and larger and softer stools than laxatives, as Rhubarb, Aloes, etc. Caustic— A medicine or agent used to destroy liv- ing tissue, as Caustic Potash, Silver Nitrate, etc. Cautery. — An agent used to sear or burn living tissue, with a cauteiy or a caustic, as a hot iron or Nitric Acid, etc. Cautery Actual. — A metal instrument heated by an electric current or by flame, used to destroy bone or muscular tissue or for producing counter-irritation, much preferred to seatons in diseases of the bones es- pecially of tlieir joints, as in Bone Spavin, Ringbone, etc., also valuable in the treatment of sprained tendons. The methods used are either puncture or line firing. Cautery Poten^peal. — A chemical used for de- stroying or cauterizing flesh, as Nitric Acid, etc. Chalybeate. — A medicine containing iron, as Tinc- ture Chlorid of Iron. Condiment. — A medicine used to improve palata- bility of food, as Fenugreek, Aniseed, Salt, Pepper, etc. CoNSERVATi\T. — A medicine or substance used for the preservation of other medicines without loss, as Al- cohol, Honey, etc. Constringent. — A medicine which causes contrac- tion of organic tissues, as Tannin, etc. CoNvuLSANT. — A mcdiciuc which causes violent and unnatural contractions of muscles (convulsions) as Nux Vomica or its derivative, etc. Cordial.— A medicine which increases the strength and raises the vitality when depressed, as Aromatic Spirits of Ammonia, Alcohol, etc. CoRRECTi\^ or CoRRECTANT. — A substaucc used to ACTIONS, USES AND DOSE 11 modify or make pleasant the action of a cathartic or other medicines, as Acacia, Coriander, etc. Corrosive. — A substance that destroys organic tis- sue either by direct chemical means or by causing inflam- mation and suppuration, as Mercuric Chloride, Nitric Acid, etc. Counter Irritant. — A substance or medicine which produces sui^erficial inflammation artificially in order to exercise a good effect, by stimulating functional activity of a part, thus promoting repair upon some adjacent or deep-seated morbid process, as Blistering or Firing, etc. Cumulative Poison. — A medicine which finally acts as a poison after several successive doses have been taken with little or no apparent effect, as Arsenic, Strychnine, etc. Debilitant. — A medicine which diminishes the en- ergy of organs, as Bromide of Potassium, Lobelia, etc. Defervescent. — A medicine that reduces tempera- ture, as Quinine Sulphate, Aconite, etc. Deliriant or Delirifacent. — A medicine which produces delirium, as Opium, Stramonium, Alcohol, etc. Demulcent. — A mucilaginous or oily, soothing blend to protect irritated skin or mucous membranes, as Carron Oil, White of an Egg, etc. Deobstruent. — A medicine which removes func- tional obstructions in the body, as Castor Oil, Magne- sium Sulphate, Aloes, etc. Deodorant or Deodorizer. — A substance to con- ceal or destroy foul odors, as Crude Carbolic Acid, Chloride of Lime, etc. Noxious odors may also be de- stroyed and absorbed with freshly burnt charcoal or dry earth. Depletory. — A medicine which diminishes the quantity of liquid in the body, as Iodide or Nitrate of Potassium, etc. Depressant. — A medicine which lessens vital power, as Opium, Aconite, etc. 12 VETERINARY MEDICINES Depresso-Motor. — A medicine that depresses motor activity, as Sodium or Potassium Bromide, etc. Depurant. — A medicine for cleaning foul wounds and abscesses, as Hydrogen Peroxide, etc. Depuratory. — A medicine which purifies the blood, as Sulphur, Iodide Potassium, etc. Dermatic. — A medicine used in diseases of the skin, as Resorcinol, Zine Oxide, etc. Derivative. — A substance used in drawing away blood or liquid exudates from diseased parts by creat- ing an extra demand for them in some other part of the body, as Mustard, Capsicum, Cantharides, etc. Desiccant. — A medicine used for drying up sores, as Tannic Acid, Boric Acid, etc. Desiccati\^. — A medicine which dries up secretions, as Zinc Oxide, Camphor, etc. Desiccatory. — A medicine used externally to dry up moisture or fluids from wounds, as Tannic Acid, Starch, etc. Desquamation. — A medicine which removes scales from the skin, bones and mucous membranes, as Potas- sium Iodide, etc. Deter(jent. — A substance for purifying and cleans- ing wounds, ulcers, as Hydrogen Peroxide, Soap and Water, etc. Diaphoretic. — A medicine which causes an in- creased amount of perspiration, as Pilocarpine, Ginger, etc. Diarrhetic. — A substance or medicine which causes increased frequency and lessened consistency of fecal evacuations, as Mandrake. Dietetic. — A medicine having nutritious properties, as Olive or Cod Liver Oil, etc. Digestant. — A medicine that assists digestion of food, in the mouth, stomach or intestines, as Pancratin, Pepsin, etc. Digestive. — A medicine which promotes the process of digestion, as Gentian, Qussia, Nux, Vomica, etc. ACTIONS, USES AND DOSE 13 Diluent. — A medicine that dilutes the secretions of organs, as Magnesium Sulphate, Gamboge, Arecoline, etc. DiscuTiENT. — A substance or medicine having the power of causing an exudation to disappear, as Iodide of Potassium, Red Iodide of Mercury, etc. Disinfectant. — A medicine which destroys septic poisons of communicable diseases; its special function is to kill or hinder the development of those germs or bacteria which produce diseases, as Carbolic Acid, Chloride of Lime, Formaldehyde, etc. Dissolvent. — A medicine that promotes solution of tissues of the body, as Potassium Iodide, etc. Diuretic. — A medicine that increases the secretions of the urinary organs, as Potassium Nitrate, Buchu, Turpentine, Spirits Ether Nit, etc. Drastic. — A medicine having a severe purgative or cathartic effect on the bowels, as Croton Oil, etc. Ebolic. — A medicine causing contraction of the uterus, and thus producing abortion, as Ergot, etc. Electuary. — A substance used to lessen irritability or increase the palatability of medicines, as Sugar, Honey, Molasses, Water, etc. Eliminative. — A medicine having power of expell- ing or casting out, especally waste products, as Areco- line, Magnesium Sulphate, etc. Emetic— A substance or medicine having the power to induce vomiting, as Apomorphine, Ipecac, etc. Emmenagogue. — A medicine which stimulates menstrual flow, as Potassium Permanganate, etc. Emollient. — A substance used externally to soften, sooth and relax parts to which they are applied as veg- etable poultices, oils, etc. Epispostic. — A medicine producing a blister, as Cantharides, Aqua Ammonia Fort, etc. Errhine. — A medicine that increases nasal secre- tions, as Formalin, Capsicum, etc. EvACUANT. — A medicine which causes the emptying 14 VETERINARY MEDICINES of an organ, especially the bowels, as Magnesium Sul- phate, Aloes, etc. Excitant. — A medicine that arouses functional ac- tivity, as Nux Vomica, Alcohol, etc. ExHiLARANT. — A mcdiciuc which cheers or stimu- lates the mind, as Strychinine, Alcohol, etc. Expectorant. — A medicine that acts upon the pulmonary mucous membranes to increase or alter its secretions, as Lobelia, Chloride of Ammonia, etc. Febrifuge. — A medicine which lessens bodily tem- perature, as Quinine, Acetanilid, Aconite, etc. Fumigation. — Is a process of disinfection by ex- posure to the fumes of a vaporizing disinfectant, as Formaldehyde. Galactagogue. — A medicine or substance which stimulates the secretions of the mammary glands, there- by increasing the flow of milk, as Segenaroot, Pilocar- pine, etc. Germicide. — A medicine which destroys germs of any kind whether bacilli, spirilli or micrococci, as Bi- chloride Mercury, Carbolic Acid, etc. Hematinic. — A medicine that increases the propor- tion of hematin or coloring matter in the blood, as Iron, Arsenic, etc. Hemolytic. — A medicine which causes the breaking down of the blood corpuscles, as Mineral Acids. Hemostatic. — A medicine which stops bleeding, as Tincture Chloride of Iron, Ergot, etc. Hepatic Depressant or Sedative. — A medicine that decreases the function of the liver, as Plumbi Acetate, Morphine, etc. Hepatic Stimui-ant. — A medicine which increases the functions of the liver, as Calomel, Podophyllin, etc. HiDROTic OR Hydrotic. — A medicine that stimu- lates perspiration (sweat), as Pilocarpine, Spirits Ether Nit., etc. Hydragogue. — A medicine which causes full watery evacuations from the bowels, as Arecoline, Gamboge, etc. ACTIONS, USES AND DOSE 15 Hypnotic. — A medicine which produces sleep, as Chloral Hydrate, Morphine, Potassium Bromide, etc. Hyposthenic. — A medicine which causes weakness, debility, as Lobelia. Idiosyncrasy. — A peculiarity of constitution that makes one person or animal react differently to medi- cines or other influences from most persons or animals. Insecticide. — A substance used to destroy insects, as unrefined carbolic acid, benzine, etc. Intoxicant. — A drug which excites or stupifies, as alcohol, etc. Irritant. — A medicine or agent causing heat, pain and tension due to the increased flow of blood to the part, as heat, mustard, etc. Lactagogue.— A medicine which increases the flow of milk, as extract of malt, jaborandi, etc. Laxative. — A medicine that loosens the bowels; a mild cathartic or purgative, as potassium nitrate, sul- phur, etc. Lenitive. — A substance having the quality to re- lieve pain or protecting tissues from the actions of irri- tants, as fats, oils, etc. Liquefacient. — A medicine which promotes the liquefying processes of the system, as potassium iodide, etc. Lithagogue. — A medicine which expels calculi (or stones) from the kidneys or bladder, as benzoic acid, etc. LiTHOLYTic or LiTHONTRiPTic. — A mcdiciuc to dis- solve ealculi (or stones) as benzoate of ammonia, car- bonate of potassium, etc. Lubricant. — A substance which soothes irritated surfaces of the throat and their fauces, as honey, olive oil, etc. Medicament. — Any medicine used in the treatment of diseases or wounds. Medicine. — Any substance for the cure of disease. Mydriatic. — An agent which dilates or enlarges the pupil of the eye, whether used internally or external- ly, as atrophine. 16 VETERINARY MEDICINES Myotic. — Any agent that contracts the pupil of the eye, whether applied to the eye or taken by the mouth, as eserine, arecoline, etc. Narcotic. — A medicine which produces sleep and relieves pain, but first cause cerebral excitement, as chloroform, ether, belladonna and alcohol, etc. Nephritic. — A medicine used in diseases of the kid- neys, as buchu, uva ursi, etc. Nervine. — A medicine that calms nervous excite- ment or acts favorably in nervous diseases, as potas- sium bromide, chloral hydrate, etc. Nutrient.- — A medicine which builds up the waste tissues of the system, as cod liver oil, general tonics, etc. Obtundent. — Any agent which relieves irritation or reduces sensibility, as opium, poultices, etc. Odontalgic. — Any substance for the relief of tooth- ache, as oil of cloves, morphine, etc. Odorant. — Any substance with a pronounced odor, as naphthaline, asafoetida, etc. Opiate. — A drug which causes sleep, as chloral hydrate, opium, etc. Oxytocic. — Any agent that produces parturition, as cotton root, ergot, etc. Panacea. — A medicine curing all diseases; a cure all, as some patent medicines. Parasiticide. — A substance that destroys various animal and vegetable organisms or parasites which live upon the surface of the body, as mercurial and sulphur ointment, etc. Parturient or Parturifacient. — Any agent as- sisting in the birth of the young, as ergot. Peristaltic- — A medicine which increases the move- ments of the longitudinal and transverse muscular fibers of the intestines and assists them in expelling their con- tents as nux vomica, arecoline. etc. Placebo. — Any medicine or inert substance given for the purpose of satisfying the patient, rather than for its medical effects, as sugar, fenugreek, anise, etc. Poison. — An agent that when introduced into the ACTIONS^ USES AND DOSE 17 body either destroys life or impairs seriously the func- tions of one or more of its organs, as potassium cyanide, hydrocyanic acid, etc. Potential. — A medicine which possesses restora- tive effects, but is delayed in its effects, as potassium iodide, arsenic, etc. Preservative. — A substance which prevents decom- position of another substance, as acetanilid, borac acid, etc. Preventive or Prophylactic. — A medicine or method that tends to prevent disease, as quinine for the prevention of malaria, vaccine, hygienics, etc. Protective. — A substance used for protecting the parts to which it is applied, as collodion, etc. Pungent. — Any substance producing a sharp, pinching, penetrating effect, as ammonia. PuRGx\TivE. — A medicine causing copious evacua- tions of the bowels. (See Cathartics.) PusTULANT. — A medicine which irritates and gives rise to the formation of pustules, as cantharides, croton oil, etc. Recuperati\te — A medicine which restores health and energy, as extract of malt, cod liver oil, etc. Refrigerant. — A medicine or agent having cool- ing properties or the power of lowering internal or ex- ternal temperature, as potassium nitrate, aconite, cold water, etc. Relaxant. — A substance which causes relaxation of muscular tissues, as chloroform, chloral, etc. Reparative. — A substance used to restore debili- tated tissues of the body, as general tonics, nitrogenous foods, etc. Resolvent. — A substance indicated in the treat- ment or absorption of hard, callous tissue, as iodine and its preparations. Restorati^^. — A medicine that aids in restoring the health, as nux vomica, arsenic, etc. Revulsant or Revulsive. — An agent which pro- 1 8 VETERIXARY MEDICINES duces irritation and draws fluids from other parts dis- eased, as poultices, cantharides, etc. Rubefacient. — A medicine or agent causing irrita- tion and redness of the skm, as turj^entine, mustard, etc. Sedative. — A medicine which diminishes functional activity, as potassium or ammonium bromide, etc. Septic. — An agent causing poisoning resulting from the absorption of products of putrefaction, as bacteria. Sialogogue. — A medicine stimulating the flow of saliva, as pilocarpine, arecoline, ginger, capsicum, etc. Somnifacient or Soporific. — A medicine which produces drowsiness and sleep, as morphine, chloral hydrate, potassium, bromide, etc. Sorbefacient. — A medicine used to produce abor- tion, as ergot. Specific. — A medicine or agent which has a distinct curative influence on an individual disease, as potassium iodide, in actinomycosis (Lumpy Jaw) or oxygen in milk fever, etc. Stimulant. — A medicine which quickens or in- creases functional activity, as stryclmine, ammonium carbonate, alcohol, etc. Stomachic. — A medicine which increases functional activity of the stomach, as quassia gentian, etc. Stomatic. — A medicine used in diseases of the mouth, as boric acid, potassium chlorate, alum, etc. SuPERFAciENT. — A mediciuc causing unconscious- ness from which the patient can be roused, as opium, bromide of potassiimi, etc. Styptic. — An agent that checks bleeding by caus- ing contraction of the blood vessels, as tincture chloride of iron, ergot, etc. Succedaneum. — A medicine which may be substi- tuted for another possessing similar properties, as chloral hydrate for potassium bromide, or aloes for lin- seed oil, etc. Sudorific. — A medicine or agent which produces an increased quantity of perspiration (sweat) as ginger pilocarpine, Dover's powders, etc. ACTIONS, USES AND DOSE 19 SuppuRANT. — A medicine or agent promoting pus formation, as poultices, cantharides, croton oil, etc. Synergist. — A medicine which co-operates or assists the action of another, as chlorofonn with ether, can- tharides with red iodide of mercury, etc. Taenicide. — A medicine which destroys tape worms, as extract of male fern. Taenifuge. — A medicin'e which expels tape worms, as areca nut, pumpkin seed, oil of turpentine, etc. Tetanic. — A medicine or agent which increases the irritation of the spinal cord or muscles producing spasms, as strychnine, etc. Tonic. — A medicine promoting nutrition and giving strength to the body, as arsenic, cod liver oil, etc. Topic or Topical. — A substance or agent for ex- ternal use, appHed locally, as a liniment. Toxic. — A condition produced by a poison, as a re- sult of an over-dose of medicine or the absorption of bacterial products. Tricophyed. — A medicine promoting the growth of hair, as pilocarpine, cantharides, capsicum, etc. Uterine. — A medicine acting upon the uterus, as ergot. Vehicle. — A medicine or agent used as a medium or base for the administration of medicines, as syrups, oils, water, etc. Vermicide. — A medicine which destroys parasitic worms, as turpentine, iron sulphate, tobacco, creosote, etc. Vermifuge. — A medicine which expels parasitic worms, as arecoline, aloes, etc. Vesicant. — A medicine which forms justules con- taining white serum, as cantharides. Virus. — A poison of an infectious disease, especially one found in the system of an animal suffering from an infectious disease, as hog cholera, cowpox or rabies virus, etc. Vulnerary. — Any medicine or compound used in the treatment of wounds, as ointments, liniments, etc. 20 VETERINARY MEDICINES ADMINISTRATION OF MEDICINES The following methods of administering medicines in order of their rapidity of absorption, beginning with the method by which absorption is most rapid, and fol- lowing with those by which absorption is less ra])id and finally least rapid: 1. Intravenous, by injection into veins. 2. By inhalation (volatile drugs). 3. Subcu- taneous, by injection into sul)cutaneous tissue. 4. In- tratracheal, by injection into the trachea {or wind pipe) . 5. Oral, by the mouth. 6. Rectal, by the rectum. 7. Inunction, by the skin. 8. Intramammary injections. WHEN MEDICINES SHOULD BE ADMINISTERED The curative effects of medicines may be restrained, changed m form or prevented by untimely administra- tion. Medicines intended to act on the mucous membrane of the stomach should only be given when that organ is empty. If distant parts are to be affected in the most prompt and efficient manner and the medicine is free from distinct irritating qualities, it should be taken on an empty stomach; as w^hen digestion is going on, the contents of the stomach are acid in reaction and if alkalies are given combinations take place and salts are formed. If alkalies are given before digestion begins, diffusion of the acid-forming constituents of the blood takes place, and in this way the acidity of the gastric juice is promoted; likewise acids given before meals in- crease the diffusion of the alkaline constituents of the blood. METHODS OF ADMINISTERING MEDICINES Drenching, bit, balling gun, capsule gun, bottle, dose syringe and hypodermic syringe. Anaesthetics administered in feed bags or proper inhaler. ACTIOXS^ USES AND DOSE 21 TABLES USED IN PRESCRIPTION WRITING APOTHECARIES OR TROY WEIGHT. 20 Grains (Granum) (Gr. or Grs.)=l Scruple. 3 Scruples (Scrupulum) (Sc.)=l Drachm (60 Grs.) 8 Drachms (Drachma) (3)=1 Ounce. 12 Ounces (Uncia) (S)=l Pound (lb) In prescription writing the pound sign should not be used; always express large quantities by ounces. APOTHECARIES' LIQUID MEASURE. 60 Minims (Minimum) (M. or Ms.)=l Fluid Drachm. 8 Fluid Drachms (Fluid Drachma) . (fl. 3)=1 Fluid Ounce. 16 Fluid Ounces (Fluid Uncia) (fl. S):=l Pint. 2 Pints (Octarius) (0.)=1 Quart. 4 Quarts or 8 Pints^l Gallon (congius — C.) In prescribing liquids the abbreviation for Quarts^ (Qts.) is never used. If a quart is desired it is expressed as two pints (Oij). APPROPRIATE EQUIVALENTS OF WINE UNITS IN DOMESTIC MEASURES. Teaspoon =3i. Dessert spoon =3ii. Table spoon =Bss. Cup =?iv. Tumbler — Bviii. TABLES FOR REGULATING THE DOSES FOR YOUNG ANIMALS HORSES. 3 years old and upward, full dose. From IVz years old to 3 years, i/o dose. From 9 to 18 months old, % dose. From 41/^ to 9 months old, % dose. From 1 to 4 1/2 months old, -f^ dose. CATTLE. 2 years old and upward, full dose. From 1 to 2 years' old, % dose. From % to 1 year, % dose. From 3 to 6 months, % dose. From 1 to 3 months, tV dose. SHEEP. 2 years old and upward, full dose. From 1 to 2 years old, % dose. From % to 1 year, ^4 dose. From 3 to 6 months, % dose. From 1 to 3 months, ^^ dose. 22 VETERINARY MEDICINES PIGS. 1% years and upward, full dose. From 9 to 18 months old, % dose. From 4% to 9 months, Vi dose. From 2% to 4% months, % dose. From 1 to 2^/^ months, -^ dose. DOGS. From 1/^ to 1 year old, full dose. From 3 to 6 months, V2 dose. From IVo to 3 months, % dose. From 20 to 4.5 days, Vs dose. From 10 to 20 days, i\- dose. THE ART OF PRESCRIBING The prescription should be as brief and simple as possible. It should be explicit and clearly written. It may be expressed either in Latin or in English. The manner in which the medicine is to be used should be specified. Important instructions as to the rule, sys- tematic regulations or diet of the jDatient are sometimes necessary. Prescriptions usually contain two or more of the following four representative constituents: (1) The basis or active ingredients. The practice of conjoining several active medicines has wisely been abandoned. Occasionally, however, it may be advantageous to give together two medicines producing their effects in some- what different ways. Thus, spasms of the bowels are more often effectually controlled by the conjunction of a stimulant like ether and an anodyne like opium than by either given alone. Pain which is not alleviated by either morphine or atropine is sometimes abated by giv- ing them together. 1(2) The adjuvant is introduced in order to increase, moderate or modify the action of the basis. Frequently its chief object is to insure solubility and ready absorption. (3) A corrective is occasionally required to temper the effects of the basis. Thus a small dose of opium is prescribed w^ith oil or other lax- ative in cases of diarrhoea; ginger is generally added to ACTIONS^ USES AND DOSE 23 the aloetic mass to prevent its griping. (4) The vehicle generally consists of some comparatively inert substance, added to facilitate administration, such as the treacle, linseed meal or licorice powder used as an excipient for boluses and pills, the benzoated lard or vaseline used for making ointments, and the water given in drenches. Example : Barb. Aloes Si- Calomel ii. Ginger 3ii. Molasses Bss. M. et fiat massa, in bolus 1. Sig. Give at once. — John Jones. In the above prescription aloes is the basis ; calomel as an adjuvant, ginger as a corrective, molasses as an excipient. A prescription is composed of several parts, which may be considered as follows : 1. Heading. 2. Names and quantities of drugs. 3. Directions to compounder. 4. Directions to attendant. 5. Signature of writer. 1. For Gray Tom. July 22, 1916. Cupri sulph., Ferri. sulph. exsic, aa. 5iss. Pulv. belladonna fol., Pulv. gentian rad. aa. 5iii. 3. M. Ft. Chart No. XII. 4. Sig. — One powder three or four times daily in syrup. — John Jones. 24 VETERINARY MEDICINES ABBREVIATIONS PRESCRIPTION WRITING. Words, phrases and abbreviations commonly used in prescription writing. R — means take tliou. M. — Misce, mix. Fiat — ma-ke. Ad. — add, to make. Et. — means and. Sig. — Signa, label, or write thus. Numerus — number. O. — Oclarius, a pint. Ter. — thrice. C. or Cong. — Congius, gallon. Dies. — diem, day. Q. S. — Quantum sufficiat. Sufficient quantity. Bene — well. q. s. ad. — quantity sufficient to make certain amount. Q. h. — quaqua — hora, every hour. aa. — ana. Of each. S. — Semis, means half. S. S. — Semi or Semissis means one-half. Cum. — with. Stat. — statim, immediately. B. I. D. — Bis in die. Twice daily, T. I. D., or T. D. — three times daily, Ter in die. Q. D. — quarter in die; four times daily. P. JE. — Partes sequales, equal parts. Div. — divide. Gtt. — Guttae, drops. Grs. — Grains. 5 — Drachma, dram. 3 — Uncia, ounce. M. — Minims about a drop. 3 — Scruple. M. ft. — mistura fiat; let a mixture be made. Pil.— Pilula; pill. Destil. — Destilla; distill. Liq. — -liquor a solution. Pulv. — Pulvis; powder. FL— fluidus, fluid. Bol. — Bolus, large pill. Cola — strain. Filtra — filter. Capsula — cap. A capsule. Charta — chart. A paper (medicated). Dosis — Dos.. A dose. Massa — Mass. A pill — mass. Unguntum — Ungt. An ointment. Syrups — Syr. A syrup. Vinum.^ — Vin. A wine. Aqua fontana — Aq. font. — Spring water. Aqua, destillata— Aq. dest. — Distilled water. ACTIONS^ USES AND DOSE Z5 ACIDUM BORICUM— BORACIC ACID— BORIC ACID Derivation. — Made by evaporation and crystalliza- tion of a solution obtained by passing steam issuing from rocks in volcanic regions of Italy, through water; or by the action of hydrochloric or sulphuric acids upon borax. Recovered by filteration and recrystallization. Properties. — Transparent colorless scales, of a somewhat pearly luster, six-sided tricline ciystals, or a light white, very fine powder, slightly unctuous to the touch; odorless, having a faintly bitterish taste, and permanent in air. Soluble in water, alcohol, glycerine, etc. Dose. — Horses and cattle, 2 to 4 drs.; foals and calves, 20 to 30 grs. ; sheep and pigs, 30 to 40 grs. ; dogs, 5 to 20 grs. PREPARATIONS GLYCERITUM BOROGLYCERINI — GLYCER- ITE OF BOROGLYCERIN Composed of boric acid, 310 parts; glycerin to make 1,000; prepared by heat (303° F.) . Actions. — Boric acid is a non-volatile, non-irritating antiseptic, deodorant and astringent, it arrests fermen- tation of minute organisms, free of irritating effects in solution, when a])plied to wounds; it lessens suppura- tion, and is as effective as carbolic acid; can be used in any strength from the pure powder or saturated solu- tion to the mildest form. Uses. — Boric acid is indicated for all purposes for which an antiseptic is used; it is used in diarrhoea in foals, calves and dogs, combined with other drugs; it has a slightly astringent action of itself ; it is excreted in the urine, consequently would exert its influence on the bladder in crystitis, cystic catarrh; 1 ]xart in 800 ])re- vents the development of anthrax-bacilli; useful in skin diseases, also used in keratitis and catarrhal and puru- lent conjunctivitis, six to ten grains to the ounce, with atropine or cocaine when very painful. Useful in dis- 26 \t:terinary medicines temper of dogs where the bowels are affected, as an anti- septic. Boric acid is preferred to carbolic acid as an antiseptic for dogs. On account of the paralyzing ef- fect of carbolic acid on the nerves, it hmders the healing of wounds to a certain extent, while the boracic acid does not. Boric acid may be applied pure to wounds and sores or mixed with other suitable drugs as a dusting powder. Equal parts of boric acid and zinc oxide make a cheap and effective healing powder; to an itching wound the addition of an equal quantity of acetanilide increases its value. A saturated solution (four per cent) is useful as a vaginal and uterine douch and to flush the bladder in cystitis. ACIDUM CARBOLICUM CRUDUM— CRUDE CARBOLIC ACID Derivation. — A liquid consisting of several dif- ferent constituents of coal tar, ]:)articularly cresol and phenol, obtained by fractional distillation. Properties. — A nearly colorless, or reddish-brown liquid of a strong disagreeable and creosote-like odor, and gradually turning darker on exposure to the air and light. Soluble in fifteen parts of water. PHENO— ACIDUM CARBOLICUM— CARBOLIC ACID Derivation. — Obtained from crude carbolic acid by agitation with caustic soda, heating to 338° F., and add- ing hydrochloric acid. Then by agitation with sodium chloride, digestion with calcium chloride, and distilla- tion at a temperature between 336° F. and 374° F. and finally by crystallization. Properties. — Phenol in its pure state is a solid at ordinary temperatures, crystallizing in minute plates or long rhomboidal needles, white or colorless, of a peculiar odor recalling that of creosote, and an acrid burning taste. It is likely to be colored pinkish or brown under the influence of light and air. Soluble in about ACTIONS^ USES AND DOSE 27 19.6 parts of water, and vei*y soluble in alcohol, ether, chloroform, glycerin, fixed and volatile oils. Actions. — Phenol in large and imdiliited doses is an irritant and narcotic poison ; it is used as an antiseptic, parasiticide, antiferment and sometimes used as a local anaesthetic or anodyne in a 2 to 5 per cent solution ; also as a caustic, but should not be used as a caustic as a burn from it heals veiy slowly. Uses. — Internally as a gastric sedative in small doses for vomiting in dogs; is administered in various conta- gious and infectious diseases with the view of prevent- ing or arresting the development of micro-organisms ; it coagulates albumen, is not nearly so active as bichloride of mercury; 1 part to 500 parts of water prevents the grow^th of anthrax and other bacilli. Full doses pro- duce gastro-enteritis, and collapse, which may end fatal- ly ; it is a muscular and nerve paralyzer, both internally and externally, it kills by paralyzing the muscles of respiration and the heart. It is chiefly eliminated from the system by the kidneys, giving the urine a brownish color. In Surgery. — A three to five per cent solution is used for washing out wounds, a two to three per cent for hands, and for itching of the skin, carbolic acid three or four drachms, glycerine two ounces to one pint of water. Do not use over large surface on dogs and not at all on cats. Phenol treatment for Tetanus, which has given very good results and I would recommend one drachm in three ounces of water, injected hypodermically in the region of neck and shoulder every two or three hours until twelve injections were given and less frequently thereafter. Doses. — Of the phenol: Horses and cattle, 10 to 40 grs.; sheep and pigs, 5 to 10 grs. ; dogs, 14 to 1 gr., well diluted. Toxicology. — Dogs and cats are especially suscept- ible to the action of carbolic acid, therefore great care 28 VETERINARY MEDICINES must be exercised when washing, especially cats, with any preparation containing carbolic acid. Disinfecting and deodorizing cat's quarters with any preparation con- taining carbolic acid makes them sick. Antidote. — Sulphates of soda or magnesia. Atro- pine sulphate hyodermically is a very valuable antidote. Alcohol and vinegar have been used with good results, both internally and externally. ACIDUM SALICYLICUM— SALICYLIC ACID An organic acid, existing naturally in combination in various plants, but largely prepared synthetically from car])olic acid. Derivation. — Made by passing carbonic dioxide through sodium carbolate at a tem])erature of 428° F. (220° C.) . 2 NaCoHsO (sodium carbolate ) + CO2 = Na2C7H403 (sodium salicylate) + CcHgO (phenol). Sodium salicylate is treated with hydrochloric acid when salicylic acid is precipitated. Properties. — Light, fine, white, needle-shaped crystals, odorless, having a sweetish, afterwards acrid taste; permanent in air. Soluble in alcohol, ether and hot water; borax increases its solubility. Dose. — Horses, 2 to 6 drs.; cattle, 1/2 to 1 oz.; sheep, 1 to 2 drs.; pigs, 30 to 40 grs.; dogs, 5 to 20 grs.; should be given well diluted; large doses are recommended for fevers, but smaller doses more often repeated in rheu- matism. SODII SALICYLAS— SODIUM SALICYLAS Derivation. — IMade by the action of salicylic acid on sodium carbonate. The solution is filtered and heated to expel carbon dioxide. Properties. — A white amorphous or crystalline powder or scales ; odorless and having a sweetish, saline taste. Permanent in air. Soluble in water, alcohol and glycerine. Dose. — Same as for salicvlic acid. ACTIONS^ USES AND DOSE 29 PHENYLIS SALICYLAS— PHENYL SALICY- LATE (Salol) Derivation. — Made by heating salicylic and car- bolic acids with phosporous pentachloride. Properties. — A white crystalline powder; odor- less, or having a faintly aromatic odor, and almost taste- less. Permanent in air. Insoluble in water, soluble in ten parts of alcohol and readily soluble in chloroform. Dose. — Same as for salicylic acid. Actions. — Salicylic acid, sodium salicylate and phenyl salicylate are powerful antiseptic, anti-rheu- matic, diaphoretic, cadiac depressant, antiferment and antipyretic. Salicylic acid is in addition irritant and astringent, continued in large doses is apt to derange digestion; best to be administered on a full stomach. Uses. — For acute rheumatism, influenza, strangles and purpura where there is much sloughing; also as a surgical wash, salicylic acid one part, borax one part to thirty or forty parts of water. Salicylic acid is a more powerful antiseptic than carbolic acid. Salicylic of soda is freely antiseptic. Salicylic acid is highly recom- mended in intestinal flatulence, given in two drachm doses with one ounce of aromatic spirits of ammonia. In gastric-flatulence give two drachms in capsule, repeat in half hour if necessary. ACONITUM— ACONITE— MONKSHOOD Derivation.— Aconite is obtained from the root of aconitum napellus, which grows in Northwestern North America, Europe and Asia in mountainous regions, and cultivated in the United States for its beautiful flowers. Properties. — The fresh leaves have a faint narcotic odor, most sensible when they are rubbed. Their taste is at first bitterish and herbaceous, afterwards burning and acrid, with a feeling of numbness and tingling on the inside of the lips, tongue and fauces, w^hich is very durable, lasting sometimes many hours. When long chewed they inflame the tongue. The dried leaves have 30 VETERINARY MEDICINES a similar taste, but the acrid impression commences later. Their sensible properties and medical activity are im- paired by long keeping. They should be of a green color, and free from mustiness. The root has a feeble earthy odor. Though sweetish at first, it has afterwards the same effect as the leaves upon the mouth and fauces. It shrinks much in drying and becomes darker, but does not lose its acrimony. Those parcels, whether of leaves or roots, should always be rejected which are destitute of this property. Aconite root is officially described as being "slenderly conical, 4 to 10 cm. long, 10 to 20 mm. thick at the crown; occasionally split; long- itudinally wrinkled ; dark brown and marked with coarse whitish root-scars; fracture short, horney or mealy; in- ternally whitish or light brown; the cambium zone ir- regular and 5 to 7-angled ; odor veiy slight ; taste sweet- ish, soon becoming acrid and developing a tingling sen- sation, followed by numbness." Preparations of the leaves are not official in the U. S. P. The root is five times stronger than the leaves. Constituents. — The alkaloid representing the ac- tion of the drug is aconitine, which is precipitated by am- monia from an aqeuous solution of an alcoholic extract of the root of various species. It is a colorless, crystalline or amorphous, gray powder, almost insoluble in water, and soluble in 22 parts of alcohol, in 44 parts of ether and 1 ])art of chloroform. Its salts are soluble in water. Aconitine or its solutions, unless very dilute, are too poisonous to be tasted. Commercial preparations vary in purity and strength, and since it is extremely poisonous its internal administration is undesirable. Pseudo-aconitine, aconi- tine and other alkaloids in combination with aconitic acid have been obtained from aconite, but their identity and chemistry are uncertain. Dose. — Horses and cattle, 3 to 20 grs.; sheep and pigs, 1 to 3 grs.; dogs, 1/10 to l/ll gr. ACTIONS^ USES AND DOSE 3 1 PREPARATIONS FLUIDEXTRACTUM ACONITI — FLUID- EXTRACT OF ACONITE Made by maceration and percolation with alcohol and water and evaporation. Assayed so that each 100 c. c. contains 0.4 gm. aconitine. Dose. — Horses and cattle, 5 to 20 m. ; sheep and pigs. 2 to 5 m. ; dogs, 1/10 to 1 m. TINCTURA ACONITI— TINCTURE ACONITE Made by maceration and percolation of aconite, 100; with alcohol and water to make 1000. Dose. — Horses and cattle, 20 m. to 1 dr. ; sheep and pigs, 10 to 20 m. ; dogs, 2 to 10 m. Fleming's Tincture (non-official) (79 percent). Dose. — Horses and cattle, 8 to 20 m.; dogs, % to 2 m. ACONITINA— ACONITINE Not used to any extent in veterinaiy practice ; is very unreliable and vaiying in strength. Aconitine often contains a considerable proportion of aconite and ben- zaconine, and so varies in activity, which is a great ob- jection to the use of one of the most powerful drugs known. Dose. — Horses and cattle, 1/30 to 1/5 gr.; dogs, 1/200 to 1/100 gr. subcutaneously. Actions of aconite, its preparations and derivative are anodynes and sedatives, acting specially on the prei- pheral endings of the sensory nei*\^es, on the heart and on respiration. Aconite kills by respiratory arrest. Its physiological actions as a cardiac and respiratory sedative renders it a febrifuge; it is also diaphoretic and diuretic. It is prescribed in acute febrile conditions, and in the earlier stages of acute local inflammation. It is used topically to relieve pain. General Actions. — Locally applied, in virtue of its action on sensoiy nerves, aconite produces first irrita- tion, tingling and twitching and subsequently numb- ness and anesthesia. The tincture of aconite is rapidly 32 VETERINARY MEDICINES absorbed and quickly passed into the tissues, as is shown by the blood of a poisoned dog five minutes after the drug has been administered, being transferred into the veins of another dog without producing the physiolog- ical action of the poison. Toxic Effects. — One and one-half drachm of the tincture (equal to about one drachm of aconite root) is given as the minimum fatal dose for the horse, one-half drachm will occasionally cause very serious symptoms and where an idiosyncrasy exists as little as fifteen minims will cause toxic symptoms. It causes great muscular weakness, dimness of sight ; pupil at first may be dilated or contracted, but as the end approaches remains dilated; shallow irregular and labored respiration, a slow and small pulse, becoming rapid and imperceptible near the end. Gulping, frothy saliva, flatulence, belching, retching, nausea, etc. There is often a peculiar clicking sound made from the con- stant attempts at swallowing. Coldness of surface, clammy sweat, anxious coun- tenance, extreme weakness of the extremities, lowering of temperature 2 to 3 degrees, abolishment of sensation, reflexes and motility and finally death from paralysis of the heart and respiration, with or without convulsions, consciousness being preserved until near the end, when carbon dioxide narcosis sets in. Uses. — It antagonizes the fever process, when prop- erly used is a most valuable drug; it is indicated in all affections, characterized by high resisting pulse, dry, hot skin and elevated body temperature; is useful in acute throat affections as laryngitis, pharyngitis and perotiditis, in small doses often repeated. Indicated in acute inflammation of the organs of resperation. For pleurisy and perotidities, at the outset, give aconite with opium. Aconite is indicated in simple fevers or in puerperal fever, inflammation of the brain; in acute or inflammatory rheumatism, in acute local inflamma- tion, as arthritis or inflammation resulting from bruises, sprains, etc. ACTIONS^ USES AND DOSE 33 In lymphangitis, laminitis and enteritis, if ealled in first stages of enteritis give 20 ms. of aconite and repeat with 10 or 15 ms. every hour and between times gives fluid extract of belladonna 15 to 20 ms. every hour and externally woolen blankets wi*ung out of hot water and wrapped around the body. In mammitis is also useful in large doses, combined with Phytolacca; in spasmodic colic brought on by drink- ing cold water, give 30 to 60 ms. of the tincture of aco- nite with other colic mixture ; in congestion of the bowels or liver, or in congestion of any part, small repeated doses are better than large ones. It is also advantag- eously used in lung disorders. AETHER— ETHER— PURE ETHER A liquid composed of about 96 per cent, by weight, of absolute ether or ethyl oxide, and about 4 per cent of alcohol containing a little water. Derivation. — Prepared by distillation of alcohol with sulphuric acid. There are two steps in the pro- duction of ether; sulphorvinic acid and water are formed in the first step. Sulphorvinic acid is then further acted upon by alcohol. The distillate is freed from water by agitation with calcium oxide and chloride and subjected to redistillation. Properties. — A transparent, colorless, mobile liq- uid, having a characteristic odor and a burning and sweetish taste. Ether is highly volatile and inflam- mable; its vapor, when mixed with air and ignited, ex- plodes violently. Miscible in all proportions with alco- hol, chloroform, benzine, benzol, fixed and volatile oils. Ether is a solvent for fats, oils, alkaloids, resins, gutta percha and guncotton. Upon evaporation ether should have no residue. Ether vapor is heavier than air and consequently etherization should never be done above a light or fire. Dose. — Horses and cattle, 1 to 2 ozs.; slieep and pigs, 2 to 4 drs.; dogs, 10 ms. to 1 dr. As an anaesthetic, horses and cattle require fixDm 4 to 16 ozs. Smaller animals from 4 drs. to 4 ozs. Chloro- 34 VETERINAHY MEDICINES form is usually prescribed for large animals and ether for smaller animals. Ether never paralyzes a healthy heart, while chloroform sometimes does. For anaes- thetic purj^oses see anesthesia. PREPARATIONS SPIRITUS AETHERIS— SPIRIT OF ETHER Composed of ether, 325 parts, alcohol to make 1000. Dose. — Same as ether. SPIRITUS AETHERIS COMPOSITUS— COM- POUND SPIRIT OF ETHER— HOFF- MAN'S ANODYNE Composed of ether, 325 parts; alcohol, 650 parts; ethereal oil, 25 parts. Dose. — Same as for ether. Actions. — Ether is anodyne, antispasmodic, dia- phoretic, anthelmintic; a cardiac, respiratory and cere- bral stimulant, an anesthetic and a narcotic poison; one of the best and quickest acting, diffusible, general stimulants, acting on the heart reflexly from the stom- ach. It is a powerful secretory stimulant, acting es- pecially on the secretions of the stomach, salivary glands and pancreas. On the cerebrum and the motor and sensory nerves, its actions are similar to that of alcohol, but more prom]7t and less protracted; it is eliminated quickly, chiefly by the lungs. When inhaled, it first causes irritation of the fauces, a sense of strangulation and cough, then a stage of ex- citement in v>'hich the visible mucous membranes are flushed and the respiration and pulse quickened; a con- vulsive stage generally follows, with rigid muscles and respiration stertorous; this subsides and complete in- sensibility is established, the muscles being relaxed and the reflexes abolished ; in fact all of the functions of the body are suspended, except respiration and circulation. If the inhalation be continued these too become para- lyzed, death usually resulting from slow paralysis of respiration (chloroform paralyzes quickly) ; the heart ])ulsating long after breathing has ceased. Atropine ACTIONS^ USES AND DOSE 35 hypodermically is the best antagonist to the toxic effects of ether, also artificial respiration and injections of brandy. Uses or Ether. — When mixed with alcohol, as the spirit, ether mixes readily with water. It is excellent in indigestion with flatulence; it checks gastric fermen- tation, expels the gas and overcomes irregular and vio- lent gastro-intestinal movements; hence, is also very good in spasmodic colic. In spasmodic colic, best to combine with cannabis indica or belladonna. When used as a vermafuge it should be followed by a purge. Used diluted one to ten to dislodge worms in the rectum. A most reliable remedy for collapse. Ether and alcohol are indicated in parturient paresis, ether with aqua am- monia may be used intravenously when the cow is un- able to swallow. Sulphuric ether and alcohol or whisk j^ are also good in parturient eclampsia of bitches, though aromatic spirit of ammonia is better; for chills, spirit of nitrous ether ; also useful in convalescence from debil- itating disease. Ether is a very good remedy in Thumps. Ether may be used for local anesthesia, applied as a spray, from an atomizer, about one ounce, usually be- ing enough for the painless opening of abscesses or fistulae, but cocaine is better in our patients. As an anestlietic it should be used in preference to chloroform, for the smaller and young animals, especially dogs, which are easily killed by chloroform. Ether is less prompt in action but much safer than chloroform, as it never paralyzes a healthy heart ; it should be inhaled in as concentrated a form as possible, very little air being allowed, so it will exert its effects quickly, in the dog; a light or fire of any kind should not be allowed near, as ether is very inflammable and its vapor explosive. Al- ways have a bottle of aqua ammonia fort, at hand as a restorer. ALCOHOL Alcohol is derived directly from fruit sugar, and in- directly from starch. The grains, as wheat, rye, com; and potatoes, supply starch most economically. The 36 VETERINARY MEDICINES starch in these substances is converted into glucose by heating with very dilute sulphuric acid, or by fermen- tation with malt. G-lucose is further acted upon by yeast containing the Torula cerevisiae, which converts 15 per cent of glucose into alcohol and carbonic dioxide. The weak alcohol resulting is subjected to repeated dis- tillation until sufficiently pure and concentrated. In the natural fermentation of fruit sugar in grape juice, during the formation of wine, the amount of alcohol is self -limited to 15, rarely 20 per cent, since the ferment is killed by a larger amount of alcohol than this. Derivation. — The official alcohol is derived from rectified spirits, by maceration, first with anhydrous po- tassium carbonate, then freshly fused calcium chloride, and finally by distillation. Properties. — A liquid composed of about 92.3 per cent, by weight, or 94.9 per cent, by volume, of ethyl alcohol (C2H5OH) and about 7.7 per cent, by weight, of water (U. S. P.). A transparent, colorless, mobile and volatile liquid, of a characteristic rather agreeable odor and a burning taste. Specific gravity about .816 at 15. () C. (60° F.). Miscible with water in all pro- portions and without any trace of cloudiness. Also miscible with etlier chloroform. It is readilv volatile at low temperature, and boils at 78° C. (17*2.4° F.). It is inflammable and burns with a blue flame. Dose. — Horses and cattle, 1 to 3 oz.; sheep and pigs, 2 to 4 dr.; dogs, 1 to 2 dr. Diluted four to six times its bulk of water. PREPARATIONS ALCOHOL ABSOLUTUM— ABSOLUTE ALCOHOL Ethyl alcohol, containing not more than one per cent, by weight, of water. Derivation. — Percolation of the purest alcohol through quicklime, out of contact with the air, and re- distillation in vacuo. Properties. — Transparent, colorless, mobile and volatile liquid, of a characteristic rather agreeable odor ACTIONS, USES AND DOSE 37 and a burning taste. Very hydroscopic. Specific grav- ity not higher than 0.797 at 15.6° C. (60° F.). SPIRITUS FRUMENTI— WHISKY Derivation. — An alcoholic liquid obtained by the distillation of the mash of fermented gram (usually of mixtures of corn, wheat and rye ) and at least four years old. Properties. — An amber-colored liquid having a dis- tinctive odor and taste, and a slightly acid reaction. Its specific gravity should not be more than 0.945, nor less than 0.924, con-esponding, approximately, to an alco- holic strength of 37 to 47.5 per cent, by weight, or 44 to 55 per cent, by volume. Contains no more than traces of fusel oil. The alcholic liquors owe their flavor to bouquet to ethers which are only developed in course of time. The amylic alcohol, or fusel oil, in whisky is therefore converted into ethers, which give the charac- teristic flavor to whisky. Dose. — Horses and cattle, 2 to 4 oz.; sheep and swine, 1 to 2 oz. ; dogs, 1 to 4 dr., diluted three to four times its bulk in water. SPIRITS VINI GALLICI— BRANDY Derivation. — An alcoholic liquid obtained by the distillation of the fermented unmodified juice of fresh grapes, and at least four years old. Properties. — A pale amber-colored liquid, having a distinctive odor and taste and a slightly acid reaction. Its specific gravity should not be more than 0.941, nor less than 0.925 at 15.6° C. (60° F.), corresponding, ap- proximately, to an alcoholic strength of 39 to 47 per cent, by weight, or 46 to 55 per cent, by volume, of ab- solute alcohol. Dose. — Same as that for whisky. SPIRITUS JUNIPERI COMPOSITUS— COM- POUND SPIRIT OF JUNIPER Derivation. — Oil of juniper, 8; oil of caraway, 1; oil of fennel, 1; alcohol, 1,400; water to make 2,000. 38 VETEEIXAKY MEDICINES Compound spirit of juniper is similar to gin in its therapeutic action. Contains about 15 per cent more alcohol. Gin is made by distillation of fermented malt and juniper berries. Gin differs from the other alco- holic jDreparations therapeutically in being more diu- retic. Dose. — Same as that for whisky. RUM (not official) Rum is made from a fermented solution of molasses by distillation. It contains, by weight, from 40 to 50 per cent of absolute alcohol. Rum does not differ physiologically from alcohol. There is no authoritative Latin name for rum. Dose. — Same as that for whisky. VINUM ALBUM— WHITE WINE Derivation. — An alcoholic liquid made by ferment- ing the juice of fresh graj^es, the fruit of Vitis vinifera, free from seeds, stems and skins. Properties. — A pale amber or straw-colored liquid, having a pleasant odor, free from yeastiness and a fruity, agreeable, slightly spirituous taste, without ex- cessive sweetness or acidity. The Pharmacopoeia (1890) directs that the wine should contain from 7 to 12 per cent, by weight, of absolute alcohol. Califor- nia Hock and Reisling, Ohio Catawba, Sherry, Mus- catel, INIadeira or the stronger wines of the Rhine, iSIed- iterranean and Hungary come within the pharmaco- poeial limits. Wines containing more than 14 per cent of alcohol are usually fortified, i. e., have alcohol or brandy added to them, and much imported Sherry and Madeira contain 15 to 20 per cent, by weight, of absolute alcohol. Dose. — Same as that for whisky. VINUM RUBRUM— RED WINE Derivation. — An alcoholic liquid made by ferment- ing the juice of fresh colored grapes, the fruit of Vitis vinifera, in presence of their skins. ACTIONS^ USES AND DOSE 39 Properties. — A deep red liquid, having a pleasant odor, free from yeastiness, and a fruity moderately astringent, pleasant and slightly acidulous taste, with- out excessive sweetness or acidity. Should contain not less than 7 nor more than 12 per cent, by weight, of alcohol. Native Claret, Burgundy, Bordeaux and Hungarian wines may be included within the pharma- copoeial limits of vinum rubrum. Port (vinum por- tense) is fortified with brandy during fermentation, and contains 15 to 25 per cent, by weight, of absolute alco- hol. Port is astringent from tannic acid in the grapes, skin and stalks, or the astringency may be due to log- wood. Red wines are said to be rough, contain tannic acid and therefore are astringents. Dry wines are those which contain little sugar. The wines develop ethers with age and these improve their flavor and action. Champagne contains about 10 per cent of absolute alcohol and carbonic acid gas, which acts as a local sedative upon the stomach. Ale, stout and beers con- tain from 4 to 8 per cent of alcohol, together with bitters and malt extracts. Cider contains 5 to 9 per cent of absolute alcohol. Imported sherry (B. P.) contains 15 to 20 per cent of absolute alcohol. Alcohol is the solvent most commonly employed in pharmacy, dissolving alkaloids, resins, volatile oils, bal- sams, oleo-resins, tannin, sugar, some fats and fixed oils. Dose. — Horses and cattle, 3 to 6 oz. ; sheep and pigs, 1 to 3 oz. ; dogs, 2 dr. to 1 oz. Actions. — Alcohol is a cerebral excitant and finally becomes a depressant and a narcotic poison. It is anesthetic, antiseptic, antiparasitic, rubefacient (if confined), mild astringent, coagulate albumen; a local refrigerant by virtue of its rapid evaporation, un- less confined by bandage, oiled silk, etc., when it is absorbed by the tissues and causes a sensation of warmth. In medical doses it is a powerful general stimulant; it is very diffusible, and is partly oxidized by the organ- ism, and partly excreted; thus alcohol acts as a food. 40 VETERINAHY MEDICINES Small doses relax the blood vessels, stimulate the gastric glands, promote appetite and digestion; lessen the elimination of waste products, by preventing rapid tissue waste; causes a feeling of warmth, and temporar- ily, though slightly, raises the body temperature. It stimulates the heart and increases the functional activity of all organs, especially the kidneys and skin. Large or too long continued doses derange the ap- petite and digestion, congest or inflame the stomach and liver. Eight ounces of alcohol killed a horse. Alcohol is poisonous and should be used with caution. Uses. — Are numeixDus, used principally as a stimu- lant, either in one large dose, 2 to 3 ounces of alcohol, or better, in small repeated doses, 1 ounce every 1, 2 or 3 hours, can be conjoined with other stimulants such as sulphuric ether, aromatic spirits of ammonia, digitalis, etc. It is used in anesthetic mixtures, such as alcohol, ether and chloroform, combined in different propor- tions; in snake bites it is administered in very large doses. In blood poisoning alcohol is a most potent drug, sustaining the heart, lowering the temperature and act- ing as a germicide. Alcohol makes an excellent dress- ing for wounds ; applied locally to threatened bed-sores, frequently prevents their formation. It is useful in colds at their outset, or in a chill to restore the balance of the circulation and prevent or overcome internal con- gestion by relaxing the blood vessels of the periphery. All alcoholic liquors are useful in debilitating dis- eases, such as influenza, in two or three ounce doses re- peated every three or four hours. One-half to one drachm of quinine to one ounce of alcohol, for influenza or febrile diseases in general, excepting brain and spinal disease; useful in convalescence. In colic alcohol can be used with a great degree of success; it will act as a carminative antispasmodic and stimulant, used in col- lapse and weak heart; in septiceamia and pyaemia it has notable antiseptic and antipyretic effects. Useful in ACTIONS, USES AND DOSE 41 carbolic acid poisoning, alcohol, or alcoholic liquors, act as a chemical antidote besides overcoming the shock produced by the acid. It may also be used locally for carbolic acid burns. The effects of alcohol are noticed in ten or fifteen minutes after administration and will be shown by a better condition of the pulse, the weak pulse becoming stronger and firmer; the quick pulse slower, the breath- ing becomes more natural, eyes brighten up and in fact a general improvement is shown. Externally alcohol is used alone as a strengthening application to weak tendons and muscles; or after a race, is used to rub on the legs, combined with other drugs as a liniment, as alcohol, soap-liniment and witch hazel ; can be used in surgery as an antiseptic. To toughen the skin of tender or thin skinned horses who gall or chafe easily under the collar and saddle, alcohol will be found a most satisfactory^ application. ALOE BARBADENSIS— BARBADOES ALOES The thickened juice of the leaves of Aloe vera, Linn., Aloe chinenisis, Bak., and probably other species, evap- orated to dryness. Habitat. — The Barbadoes Island. Properties. — In hard masses, orange, brown, opaque, translucent on the edges; fracture waxy or resinous; odor saffron-like; taste strongly bitter. Al- most entirely soluble in alcohol ; most used in veterinary medicine. Constituent. — Aloin; a resin; volatile oil; gallic acid. Dose. — Horses, l/o to 1 oz. ; cattle, 1 to 2 oz. ; sheep, 1/2 to 1 oz.; pigs, 2 to 4 dr.; 20 gr. to 1 dr. ALOE SOCOTRINA— SOCOTRINE ALOES The juice that flows from the transversely cut leaves of Aloe Periyi, Baker, evaporated to dryness. Habitit — Eastern Africa. Properties.— In hard masses, occasionally soft in the interior; opaque, yellowish-brown, orange-brown or 42 VETERINARY MEDICINES dark ruby-red, fracture resinous. When moistened it emits a fragrant saffron-like odor; taste peculiar, strong- ly bitter. Almost entirely soluble in alcohol and four parts of boiling water. The powdered soeotrine aloes is brighter and redder, and the odor less disagreeable than that of Barbadoes Aloes. Constituents. — About the same as Barbadoes Aloes. Dose. — Same as Barbadoes Aloes. ALOINUM— ALOIN A neutral principle obtained from several varieties of aloes, chiefly from Barbadoes and Soeotrine Aloes. Derivation. — Obtained by pulverizing and macer- ating aloes in cold water, and evaporating the resulting solution in vacuo. Aloin crystallizes out and is dried between folds of bibulous paper. It is purified by re- peated solution in hot water, filtration, recrystallization, and finally by solution in hot alcohol and crystallization. Properties. — A micro-crystalline powder or mi- nute acicular crystals, lemon yellow or dark yellow in color, possessing a slight odor of aloes and intensely bitter taste. Soluble in water and alcohol. Dose. — Horses and cattle, 2 to 3 dr. ; sheep, 20 to 60 gr. ; pigs, 10 to 40 gr. ; dogs, 11 to 20 gr. ; combined with other purgatives. PREPARATIONS TINCTURA ALOES ET MYRRHAE — TINC- TURE OF ALOES AND MYRRH Made by maceration and percolation of purified aloes, 100 parts; myrrh, 100 parts, and Hquoric root, with alcohol and water to make 1000. Dose. — Dogs, 1/2 to 1 dr. Action. — Aloes is a purgative, acting chiefly on the large intestines; small doses are bitter tonics; it stimu- lates both peristalsis and secretion, increases secretion of bile; is also diuretic; applied externally it is stimulant and desiccant; the Barbadoes is the most active and uni- form in its effects. ACTIONS^ USES AND DOSE 43 Aloes should be kept in lumps in tin cans or other good containers, only powdered for immediate use; in melting aloes don't let the temperature rise above 120 degrees as it impairs the activity by converting the ac- tive aloin into inert resin. Aloes operate in from 12 to 24 hours after administration; don't repeat an aloetic purge until 24 hours have elapsed. It also does not cause catharsis. In about 15 hours, the patient should be exercised, but returned to the stall as soon as the desired effect is evident. If it fails to act in 24 hours, linseed oil may be given. Aloin appears to contain the active principles of aloes, and is usually as operative, but some manufactures are ineffective. Uses Internal. — In dyspepsia with capricious ap- petite, irregularity of the bowels, hide-bound horses, worms ; is used in colic, both spasmodic and flatulent, for overloaded condition of the bowels ; to promote excretion of waste products from the bowels and the blood, and consequently relieve febrile symptoms; rheumatic at- tacks, skin irritation, swollen limbs and inflamed joints; in lymphangitis to prevent and aid in curing. By at- tracting the blood to the bowels, it is useful in conges- tion or inflammation of the brain and spinal cord, full doses being necessaiy ; in paralysis, paraplegia or hemi- plegia or reflexed paralysis due to indigestion, give full doses. Aloes should not be used in irritation or inflam- mation of the alimentary canal or piles. It is not ad- visable to give an aloetic purge when the temperature is above 102° F. Nor in hemorrhage from the rectum; in high fevers it is apt to cause superpurgation, also should not be used where there is great debility or weak- ness. In influenza the bowels are apt to be irritable and oil is preferable to aloes. Don't use during pregnancy ; may cause abortion. For young foals or other animals, the gentler purgative, such as linseed or castor oil should be used. The medical value of aloes being large, it is impossible to enumerate all the diseases in which it is useful. Externally the tincture of aloes and myrrh is sometimes applied as a stimulant to wounds, and pow- 44 VETERINARY MEDICINES dered aloes is mixed with plaster of j^aris in making splints for dogs to prevent these animals from biting and tearing them off. Internally aloes should be com- bined with ginger, nux vomica and given in capsule or bolus. ALUMEN— ALUM Derivation. — From alum slate, shale, schist, a na- tive mixture of aluminum silicate and iron sulphide. This is roasted and exposed to the air, when the sulphur is oxidized into sulphuric acid and combined in part with aluminum and iron to form sulphates. The mass is lixiviated with water, and aluminum and iron sulphates together with sulphuric acid are recovered in solution. The solution is concentrated and to it is added potassium chloride. The double sulphate of potassium and alum- inum I (alum) is formed, which crystallizes out on cool- ing, while potassium sulphate and ferric chloride remain as by-products. Alum is purified by recrystallization. Properties. — Large, colorless, octahedral crystals, sometimes modified by cubes or crystalline fragments; without odor, but having a sweetish and strongly astrin- gent taste. On exposure to the air the crystals are liable to absorb ammonia and acquire a whitish coating. Sol- uble in nine parts of water, insoluble in alcohol. Dose. — Horses and cattle, 2 to 4 dr. ; sheep and pigs, 20 gr. to 1 dr.; emetic for dogs, 1/2 to 1 dr. ALUMEN EXSICCATUM— DRIED ALUM Commonly termed burnt alum, is alum deprived of its water of crystallization by heat. Properties. — A white granular powder, odorless, having a sweetisli astringent taste, soluble in twenty parts of water at 60° F. Is a powerful astringent and escharotic. ALUMINI HYDROXIDUM— ALUMINUM HY- DROXIDE Derivation.— Made from alum, 100 parts; monhy- drate sodium carbonate, 43 parts; water, a sufficient ACTIONS^ USES AND DOSE 45 quantity. Mix hot, boiling solutions of alum and so- dium carbonate. Precipitate strained, washed and dried. Properties. — A white, light, amorphus powder; odorless and tasteless; permanent in dry air; insoluble in water or alcohol. Dose. — Same as alum. ALUMINI SULPHAS— ALUMINUM SULPHATE Derivation. — Aluminum hydroxide is dissolved in diluted sulphuric acid, and the solution is filtered and evaporated to dryness. Properties. — A white, crystalline powder, without odor, having a sweetish and afterwards astrmgent taste; permanent in the air; soluble in one part of water; insoluble in alcohol. Dose. — Same as alum. Actions. — Astringent, at first excites flow of saliva, then markedly decreases it; coagulates pepsin, thus it would derange or entirelj^ arrest digestion ; it also stops peristalsis and produces constipation, though sometimes it induces diarrhoea by irritation. It arrests secretions in general and in the circulation contracts the capillaries ; it is in this way it arrests secretions, especially those of mucous surfaces, and stops capillary hemorrhage. The sulphate of aluminum is mildly caustic, astringent and antiseptic. Dried alum is caustic and astringent. Externally. — Dried alum is a caustic, in contact with raw sores, on account of its affinity for water. Alum has no action on unbroken skin, but applied to mucous membranes or denuded parts it is antiseptic and astringent; coagulates albumin of discharges; precipi- tates or coagulates albumin of the tissues ; squeeze blood out of the vessels; reduces inflammation and makes the part whiter, brings together and denser. Alum is a hemostatic, stopping bleeding by compression of the stinictures surrounding the vessels and by causing blood to clot. Uses. — In diarrhoea and dysentery, but other astrin- 46 VETERINARY MEDICINES gents are safer and better, as it may lock the bowels too tight, may be used in weeping sores or weeping skin diseases; in long standing nail wounds by putting one- half to one pound into the soaking tub, also in same way for injured coronets, with raw bulging surfaces that bleed easily, also for sore mouth, sometimes mix a little boric acid; useful in bleeding piles, and in mild solution alum one ounce to water one pint for sore throat; also used internally for bloody urine (haem- aturia) and for open joints apply the powdered alum to arrest the flow of joint oil (synovia). For catarrhal ophthalmia, after the acute stage, an alum lotion five grains to one ounce of water is very serviceable; for granular lids rub with a crystal of alum. Alum should never be used too strong over the eye as it seems to have the power of dissolving the cornea; a solution con- taining ten grains of alum to the ounce of water may be used in canker of the ear of dogs ; also for leucorrhoea and prolapsus of the rectum; dried alum may be used as a caustic whenever a caustic is indicated, but is not recommended for this piu'pose. For a powerful drying powder, es])ecially useful when excessive granulation exists. It causes sloughing of the dead tissues and is indicated when the use of the knife is inadmissible. AMYLIS NITRIS— AMYL NITRITE A liquid containing about 80 ])er cent of amyl nitrite, together with variable quantities of undetermined com- pounds. Derivation. — Obtained through distillation of nitric and amylic alcohol. Distillate purified by sodium carbonate. Properties. — A clear, yellow or pale yellow liquid, oily, very volatile, peculiar and very diffusive ethereal odor and a pungent aromatic taste. Insoluble in wa- ter, but soluble in all proportions in alcohol, ether and chloroform. Dose. — Horses and cattle, ^A to 1 dr.; sheep and piffs, 5 to 15 ms.; dogs, 2 to 5 ms. ; amyl nitrite is very seldom given internally; hypodermically, one-half this ACTIONS^ USES AND DOSE 47 dose. By inhalation, same as given internally. It should be fresh as it rapidly deteriorates. Actions. — It stimulates the heart's action, greatly dilates the arterioles by paralyzing their muscular coats ; causes a sense of fullness in the brain with vertigo, fall of blood pressure due to dilation of the arterioles, lower- ing of temperature; when the vapor is applied direct to muscular or nerve tissues it suspends or completely ar- rests its functional activity; it depresses the nervous system and unstriped muscular fiber. Overdoses cause death by res]:)iratory failure. Uses. — Epileptic attacks may be warded off by its being inhaled ; spasmodic asthma, used either internal^, hypodermically or best by inhalation ; in strychnine pois- oning, angina pectoris in tetanus, and as a heart stimu- lant. It is useful as an inhalation in bringing about recovery from deep chloroform and anesthesia. ANISUM— ANISE Origin. — The anise plant is a native of Egypt and the Levant, but has been introduced in various parts of that continent. It is also cultivated occasionally in the gardens of this eountry. The fruit is abundantly pro- duced in Malta and Spain; in Romagna, in Italy, whence it is largely exported through Leghorn, and in Central and Southern Russia. Description. — Ovoid, laterall}^ compressed, 4 to 5 m. m. long; carpels usually cohering and attached to a slender pedicel; grayish or greenish-gray to grayish brown ; each with a flat face and five light brown filiform ridges and about 16 oil-tubes; odor and taste agreeable and aromatic. The anise berries are dried and ground, this ])eing the form in which it is usually used. Dose. — Horses and cattle, 1 to 2 oz. ; sheep and pigs, 2 to 3 dr. ; dogs, 10 to 30 gr. OLEUM ANISI— OIL OF ANISE A volatile oil distilled from the fruit of star anise. Properties. — A colorless or pale yellow, thin and strongly refractive liquid, having the characteristic odor 48 VETEEINARY MEDICINES of anise, and a sweetish, mildly aromatic taste. Specific gravity about 0.975 to 0.985. Soluble in an equal vol- ume of alcohol. Dose. — Horses and cattle, 20 to 30 m. ; sheep and pigs, 5 to 10 m. ; dogs and cats, 1 to 5 m. Actions. — Anise is an aromatic stimulant, stomachic and carminative. It is used to relieve indigestion and flatulence, to communicate an agreeable flavor to many medicines, and to diminish the griping of purgatives. Oil of anise resembles in action other volatile oils. Uses. — The oil of anise is employed with olive oil or alcohol to kill fleas or lice on dogs, rubbed over the skin; and one drop of the pure oil may be placed on the feathers of fowl to cause destruction of lice. The oil of anise is sometimes prescribed to disguise the odor of drugs, and is ordered in cough mixtures for its expecto- rant properties. The fruit is given all animals (generally powdered) on their food — frequently with sodium bicarbonate and ginger — to relieve mild forms of indigestion and flatu- lence through its stomachic and carminative effects. ANTIMONII ET POTASSII TARTARS— ANTI- MONY AND POTASSIUM TARTRATE— TARTAR EMETIC Derivation. — Make a white paste with cream of tartar, antimony trioxide and water. Set aside 24 hours, boil in water 15 minutes and crystallize. Properties. — Colorless, transparent crystals of the rhombic system, becoming opaque and white on expos- ure to the air, or a white granular powder without odor and having a sweet, afterwards disagreeable, metallic taste. Soluble in M^ater, insoluble in alcohol. Dose. — Horses and cattle, 2 to 4 dr.; sheep, 2 to 5 gr. ; pigs, 1/2 to 1 gr. ; dogs, 1/10 to l/o gr. As an emetic for pigs, 4 to 10 gr. ; dogs, 1 to 2 gr. Actions. — Tartar emetic is a systemic and local emetic, a diphoretic, cardiac and arterial sedative and a gastro-intestinal irritant. It is a powerful waste pro- ducer and stimulates the secretions of the stomach, in- ACTIONS^ USES AND DOSE 49 testines, salivary glands, liver and pancreas. Large doses cause nausea, vomiting and diarrhoea, while toxic doses are followed by vomiting (in animals that can vomit), serious blood purging, great depression of the circulation and respiration weakness, collapse and death. Tartar emetic is also a vermifuge. Uses. — Tartar emetic is too mild as an emetic in poison cases. In asthma of dogs it may be used in from 1/10 to 1/2 grain doses to relax spasm and promote secretion. For horses its most valuable use is to expel the common round worms from the intestines, for which it is very efficacious ; given in two drachm doses once or twice daily in the feed for four to six days, or one-half ounce dissolved in water is given on an empty stomach followed by a full dose of linseed oil. ANTIPYRINA— ANTIPYRIN Phenyl-hydrazine is acted upon by aceto-acetic ether, when phenly-monomethyl-pyrazolon, ethyl alcohol and water results. Properties. — Colorless, ordorless, scaly crystals, of a bitterish taste. Soluble in water, ether and chioroform. Dose. — Horses and cattle, 3 to 4 drs. ; sheep and pigs, Yo to 1 dr. ; dogs, 5 to 20 grs. Actions. — Powerful antipyretic, anodyne and local anesthetic, antiseptic, cardiac depressant; it reduces temperature very quickly, usually within half an hour and the effects continue two or more hours. It can be administered by the mouth, hypodermically or in- tertracheally ; as an antiseptic it diminishes oxidation, and promotes heat loss by dilating tlie cutaneous vessels, but more probably by depressing the activity of the calorefacient centers. Uses. — Used in high fever where the temperature must be reduced quickly, as in sun-stroke, acute rheu- matism; in man a solution of antipyrine from four to ten per cent strength up, is sprayed into the nostrils for hay-fever. Acetanilide is a better and safer and much cheaper drug for febrile diseases. 50 VETERINARY MEDICINES AQUA AMMONIAE FORTOR— STRONGER AMMONIA WATER An aquous solution of ammonia containing twenty- eight per cent, by weight of the gas. Derivation. — Evolve ammonia gas by heating am- monium chloride with calcium hydrate and pass it into water. Properties. — A colorless, transparent liquid, hav- ing an execessively pungent odor and a caustic alkaline taste. Dose. — Horses and cattle, 2 to 4 drs. ; sheep and pigs, Yo to 1 dr.; dogs, 5 to 10 m. Should be diluted one drachm to one pint of water. AQUA AMMONIAE— AMMONIA WATER An aquous solution containing ten per cent by weight of ammonia gas. Derivation. — Same as strong ammonia water. Properties. — The taste is not so caustic and the odor is less pungent then the stronger water of ammonia. Dose. — Horses and cattle, l/> to 1 oz. ; sheep and pigs, 1 to 2 drs.; dogs, 10 to 20 m. Should be diluted one drachm to half pint of water. SPIRITUS AMMONIAE— SPIRIT OF AMMONIA A alcoholic solution containing ten per cent., by weight of the ammonia gas. Derivation. — A solution of caustic ammonia in al- cohol. Properties. — A colorless liquid, having a strong odor of ammonia. This preparation of ammonia pos- sesses properties of ammonia and alcohol. Dose. — Horses and cattle, 1/2 to 1 oz. ; sheep and pigs, 1 to 2 drs.; dogs, 10 to 20 m. Should be diluted in water. ACTIONS^ USES AND DOSE • 5 1 SPIRITUS AMMONIAE AROMATICUS— ARO- MATIC SPIRIT OF AMMONIA Derivation. — Ammonium carbonate 3.4%, aqua am- monia 9%, oil of lemon l'^^, oil of lavender flowers 0.1%, oil of nutmeg 0.1%, alcohol 70%, and distilled water to make 100 parts. Diluted in water. Properties. — A nearly colorless liquid when first prepared, but gradually acquires an amber color. It has a pungent ammonial odor and taste. Actions.— These four proportions of ammonia are gastic and general stimulants. They stimulate the car- diac respiratory and spinal systems. They irritate the nose when inhaled, but reflexly they stimulate the cir- culation and respiration, they are good stimulants as they do not affect the brain. The aromatic spirits of ammonia is also a carminative. Externally they are rubefacients, and when confined are vesicants. Uses. — Its antacid and stimulant properties recom- mend ammonia in indigestion, trympanites, and spas- modic colic, especially in cattle and sheep. Stimulating the spinals and respiratory systems; it is valuable in the treatment of influenza, pneumonia, pleurisy and similar complaints. The fumes of ammonia are occasion- ally used to arouse animals from shocks, collapse, or chloroform intoxication, but must be used cautiously, lest excessive irritation of the respiratory mucous mem- brane be produced. It is a promptly acting antidote in poisoning by opium, aconite, digitalis, and ether narcotic and sedative drugs. It may be administered much di- luted in the usual way, injected subcutaneously and intravenously, and also applied externally, in the treat- ment of snake-bites. On account of its producing bronchial secretion, and assisting in its expulsion, am- monia is serviceable as a stimulating expectorant. To develop its more general effects its alcoholic proportions should be prescribed as spirit of ammonia or the aromatic spirit of ammonia. Externally used in the form of lini- ment of ammonia, with oils, camphor, etc., proves use- ful as a stimulant in rheumatism, stiff -joints, muscular 52 VETERINARY MEDICINES strains, sore throat, pleurisy, pneumonia and influenza, and for preventing the rapid chilling of fomented sur- faces. It relieves the irritation caused b}" nettles, and b}'^ bites and stings of insects. LINIMENTUM AMMONIAE— AMMONIA LINIMENT Is made by mixing ammonia water, 350; cottonseed oil, 570; alcohol, 50; oleic acid, 30. The above is rec- ognized by the U. S. P. and is advantageously used on muscular strains and where an external stimulant is in- dicated. LIQUOR AMMONII ACETATIS— SOLUTION OF AMMONIUM ACETATE An aquous solution of ammonium acetate contain- ing about seven per cent of the salt, together with small amounts of acetic acid and carbon dioxide. Derivation. — Ammonium carbonate is gi'adually added to cold, dilute acetic acid until the latter is ma- terialized. Properties. — A clear, colorless liquid, mildly saline and acidulous taste, and an acid reaction. Incompatible with acids and alkalies. Dose. — Horses and cattle, 2 to 4 oz. ; sheep and pigs, % to 1 oz. ; dogs, 2 to 6 drs. Actions. — Diphoretic, antipyretic, mild stimulant, mild duretic, mild expectorant and stomachic. Uses. — Its uses are recommended in febrile and in- flammatory attacks, especially in influenza, distemper, etc., combined with other medicines, improves the ap- petite; can be used externally as a refrigerant over swollen and inflamed tendons. AMMONII CARBONAS— AMMONIUM CARBONATE Derivation. — A mixture of ammonium chloride or sulphate, and calcium carbonate, is sublimed and resub- limed. Ammonium carbonate, so-called, is a mixture of anmionium carbonate and bicarbonate. Properties. — White translucent masses, having a ACTIONS^ USES AND DOSE 53 strongly ammonical odor, and a sharp saline taste. On exposure to air it loses both ammonia and carbonic dioxide, soluble one part in four parts of water. Doses. — Horses and cattle, 1 to 3 drs. ; sheep and pigs, 1/4 to 1 dr.; dogs, 2 to 8 grs. Larger doses are recommended when a antispasmodic or carminative is desired the dose for horses and cattle can be increased to an ounce, but only two doses should be administered, well diluted in water or in ball or capsule. Actions. — Ammonium carbonate is decomposed by acid in the stomach and escapes in the urine. It stimu- lates gastric secretion, vascularity and motion, and ex- citing intestinal paristalsis. It is, therefore, a stomachic and carminative. It is also an antacid, and, in large doses, an emetic for dogs. It is given in capsules or in solution in cold water, to avoid irritating fumes; also with syrup or gruel. It is often prescribed with other stimulants and antispasmodics, as alcohol, camphor, capsicum and asafoetida. The action of ammonium car- bonate is almost identical with that of ammonia water in stimulating the heart and respiration, but it has more power in augmenting the bronchial secretions. Uses. — It is given to all animals in indigestion ; con- joins the actions of an antacid and diffusible stimulant; in small doses promotes secretion of gastric juice, and in larger, relieves flatulence and spasm. In diseases of the air passages it is used as an expectorant; is contra- indicated in purpura haemorrhagica, as it lowers the oxygens, cariying power of red blood corpuscles, and dissolves fibrin. As a stimulant it can be combined with alcohol and sulphuric ether. Ammonia is recommended where a clot, thrombi or embolism is supposed to exist on account of its defibrinating power Ammonium car- bonate is used extensively in the treatment of spas- modic and flatulent, colic and acute indigestion con- joined with either asafoetida, capsicum, camphor, nux vomica and alcohol. 54 VETERINAHY MEDICINES AMMONII CHLORIDIUM— MURIATE OF AM- MONIA—SAL AMMONIAC Derivation. — This salt may be formed by neutraliz- ing crude solution of anmionia or ammonium carbonate with hydrochloric acid and purifying the product. Properties. — A white, crystalline powder without odor, having a cooling, saline taste, and permanent in the air. Soluble in two parts of water; in fifty parts alcohol. Doses. — Horses, 1 to 2 drs.; cattle, 4 drs. to 1 oz.; sheep and pigs, 15 grs. to 1 dr. ; dogs, 5 to 10 grs. Actions. — Internally it is an expectorant, altera- tive, feebly diaphoretic and diuretic. When ingested, ammonium chloride is a feeble heart and respiratory stimulant, and is not comparable to the ammonia com- pounds or ammonium carbonate in this respect. It is eliminated in great part unchanged by the urine, but also by the other channels. In its excretion it stimulates the mucous membranes, increases their secretion gen- erally, and is thought to improve their nutrition. Am- monium chloride both excites the secretion of the bronchial mucous membrane and renders it less viscid in inflammatory conditions. Externally it is a refrigerant. Uses. — Useful in all diseases where an expectorant is indicated, catarrhal condition, pneumonia, coughs, in- fluenza, chronic congestion of the liver, etc. Used ex- ternally one part ammonium chloride dissolved in ten parts of water as a refrigerant lotion for inflammatory swellings, bruises and sprains. ARGENTI NITRAS— SILVER NITRATE Derivation. — Dissolve silver in nitric acid with heat. Evaporate and crystallize. Properties. — Colorless, transparent, tubular, rhom- bic crystals, becoming gray, or grayish-black on ex- posure to light in the presence of organic matter ; with- out odor, but having a bitter, caustic and strongly metallic taste; soluble in water and alcohol. ACTIONS^ USES AND DOSE S5 Dose. — Horses and cattle, 5 to 10 grs.; sheep and pigs, 1 to 2 grs. ; dogs, l/g to l/o gr. ARGENTE NITRAS MITIGATUS — MITI- GATED SILVER NITRATE Derivation. -^Melt silver nitrate, 30 parts, with potassium nitrate, 60 parts, in a crucible at as low a temperature as possible. Mix and cast into suitable moulds. Properties. — A white, hard, solid, generally in the form of pencils or canes of a finely granular fracture; becoming gray or grayish-black on exposure to light in the presence of organic matter; odorless, having a cau- stic, metallic taste. Soluble in water and alcohol. ARGENTI NITRAS FUSUS— MOULDED SIL- VER NITRATE— LUNAR CAUSTIC Derivation. — Melt silver nitrate, 100 parts, with hydrochloric acid, 4 parts at as low a temperature as possible. Mix and pour into suitable moulds. Properties. — Practically same as mitigated silver nitrate. Use only externally. Actions. — Silver nitrate combines with the albumen of the tissues, and is a limited caustic ; causes superficial inflammation and stains the parts black ; small doses in- crease secretion and stimulate the heart. It promotes nutrition, and is said to be a nerve tonic. Its continued administration causes waste, gastro-intestinal catarrh, fluidity of the blood, slate colored lines about the gums, and similar discoloration of the skin and mucous mem- brane, followed by nervous disorder, paralysis, convul- sions and death. Uses. — A solution of forty grains to one ounce of spirit of nitrous ether is said to abort superficial in- flammation, if early applied ; used for erysipelas, twenty grains to one ounce of distilled water, applied around margin to limit the area; also used in ulceration of the throat; used with a spray or swab, in strength of from ten grains to one-half to drachm to one ounce of dis- tilled water. For dysentery, internally and as an enema 56 VETERINARY MEDICINES it is ver}^ good; used in conjunctivitis one to five grains to one to two ounces of distilled water, is the average strength, and should only be applied to the conjunctiva or lids, and should not be on the cornea, as it may form an insoluble chloride of silver and cause permanent opacities. Nitrate of silver is used in the form of lunar caustic to stimulate indolent ulcers, and to burn off warts. To stimulate ulcers, touch in spots around the edge; also used in chorea epilepsy and chronic spinal disease, foot rot in sheep; a piece of the caustic is placed in senuses of fistulous withers, quittors, etc. It causes a slough, followed by healthy granulation; used for sore teats in cows. ARNICAE— ARNICA Origin. — Arnica is obtained from the flower roots of a plant that grows in mountainous countries of Cen- tral Europe, Asia and America. Composition. — An active principle called arnicin. The root contains an essential oil, on which depends in great part its physiological activity. PREPARATIONS EXTRACTUM ARNICAE RADICIS— EXTRACT OF ARNICA ROOT (NON-OFFICIAL) Dose. — Horses and cattle, 15 grs. to 1 dr.; sheep and pigs, 5 to 10 grs. ; dogs, l/o to 3 grs. FLUIDEXTRACTUM ARNICAE RADICIS— FLUIDEXTRACT ARNICA ROOT (NON-OFFICIAL) Dose. — Horses and cattle, 1 to 3 drs. ; sheep and pigs, % to 1 dr. ; dogs, 2 to 10 ms. TINCTURA ARNICAE— TINCTURE OF ARNICA This is the best and most used preparation of Aniica. Dose. — Horses and cattle, 2 to 4 drs.; sheep and pigs, 15 ms. to 1 dr.; dogs, 5 to 30 ms. This dose can be given every three hours to maintain the circulation ACTIONS^ USES AND DOSE SI of the skin; as a diaphoretic, the dose can and may be increased and combined with other diaphoretics. Incompatibles. — Its action is antagonized by am- monia, alcohoHc stimulants, opium, camphor, etc. Synergists. — Aconite, veratinam viride, digitalis and arterial sedatives, generally increase the effects of arnica. Actions. — Arnica is irritant, stimulant, depressant; antipja'ctic, diuretic, diaphoretic and is used as a vulner- ary, it dilates the circular blood vessels. It irritates the gastro-intestinal tract. In alcoholic solutions (as tinc- ture of arnica) it inflames the skin when used full strength. In small doses it increases the action of the heart, raises arterial tension and stimulates the action of the skin and kidneys. Large doses produce a transient excitement, followed by depressed circulation, respiration and temperature. Uses. — It is a very efficient diaphoretic for horses in one or two ounce doses diluted in one pint of water; one-half ounce of fluid extract piloarpus may be added at the outset of inflammatory diseases of any kind, such as lymphangitis, laminitis, pulmonary diseases, etc. Ex- cellent to sto]) a chill and prevent the following fever or inflammatory action. It does this by dilating the blood vessels of the skin, thus attracting the blood to the sur- face and away from congested internal organs. It is in- dicated in sthetic fever of any kind; azoturia, rheuma- tism, especially inflammatory or articular; congestion of the brain, kidneys, etc., externally much used, but of little value on hairy animals. ARSENUM— ARSENIC Origin. — The world's supply of arsenic and arsenic compounds at the present time is obtained from Ger- many, Spain, England, Canada and portions of the United States, as Montana and Washington, w^here con- siderable quantities of arsenic are being produced as a by-product in the smelting of copper ores. Arsenic ore is roasted and purified by sublimation, before it is used for medical purposes. 58 VETERINARY MEDICINES ARSENI TRIOXIDUM— ARSENIC TROXIDE ACIDUM ARSENOSUM — ARCENOUS ACID (White Arsenic) Derivation. — Arsenical ores are roasted or con- ducted into condensing chambers and purified by sub- limation. Properties. — A hea\y solid, occurring either as an opaque, white powder, or in irregular masses of two varieties; the one amorphous, transparent and colorless, like glass; the other crystalline, opaque, and white, re- sembling porcelain. Frequently the same piece has an opaque, white outer crust enclosing the glassy variety. Contact with moist air gradually changes the glassy into the white opaque variety. Both are odorless and tasteless. The glassy variety dissolves slowly in thirty parts of water; the porcelain-like in eighty parts of water. Ar- cenous acid is sparingly soluble in alcohol, but soluble in glycerin, hydrochloric acid and solutions of the alkali hydrates and carbonates. When heated to 424°, arcen- ous acid is completely volatilized without melting. Incompatibles. — Lime water, salts of iron and mag- nesia. Dose. — Horses, 1 to 5 grs. ; cattle, 2 to 8 grs. ; sheep and pigs, 1 to 2 grs.; dogs, 1/30 to 1/10 gr. LIQUOR POTASSII ARSENTIS— SOLUTION OF POTASSIUM ARSENITE (Fowler's Solution) Derivation. — Arcenous acid, potassium bicar- bonate, compound tincture of lavender and distilled water. Strength one part of arcenous acid in 100. Dose. — Horses, 2 drs. to 1 oz. ; cattle, l/o to iVo ozs.; sheep and pigs, 10 to 40 ms.; dogs, 2 to 5 ms. Average dose for horse is l/o oz. usually given three times daily in drinking water or bran mash. LIQUOR ACIDI ARSENOSI— SOLUTION OF ARCENOUS ACID Derivation. — Arcenous acid, diluted hydrochloric ACTIONS, USES AND DOSE 59 acid, and distilled water. Strength one part arcenoiis acid in 100. Dose. — Same as liquor potassii arsenitis. LIQUOR ARSENI ET HYDRARGYRI lODIDI (Donovan's Solution) Derivation. — Arcenous iodide, red mercuric iodide, and distilled water, which should contain not less then one per cent of arcenous iodide and one per cent of mercuric iodide. Dose. — Same as liquor potassii arsenitis. Actions. — Arsenic and its compounds are gastro- intestinal and pulmonary tonic, a stimulant and altera- tive, acting particularly on the digestive and respiratory mucous membranes and skin. It is antiperiodic and tonic; also antispasmodic in diseases of the nervous sys- stem, and is a nervine tonic. In large doses it is a cor- rosive-irritant poison, killing either by gastro-enteritis, or nervous paresis. Continued doses produce fatty de- generation. On account of its being a stomachic, small doses promote the appetite and digestion. Large doses inflame the stomach and derange digestion. It increases the cardiac action, respiratory power, and secretion of the intestines. It also stimulates peristalsis. When tolerance is established, large doses are taken with im- punity. Externally. — Arsenic is a very painful excharotic, exciting violent inflammation. It is a caustic, antiseptic, and parasiticide, and is frequently used as a sheep dip. It is eliminated chiefly by the kidneys, skin and saliva and milk of nursing animals. Uses. — It should not be given in acute diseases. It is given as a general tonic after debilitating diseases es- pecially when the lungs are involved, as in pneumonia, bronchitis and pleursy. Arsenic combined with bran mashes is beneficial in stocking or swelling of the legs. As for its use in chronic indigestion, other medicines had better be resorted to. It assists in the expulsion of worms. Useful in chronic diseases of the air passage. Arsenic relieves irritable chronic coughs, and roaring in 60 VETERINARY MEDICINES early stages, as well as thick and broken wind and heaves. As an alterative modifying tissue change it is prescribed in early stages of tuberculosis, chronic rheu- matism, chorea and epilepsy. It prevents periodically returning fevers. In anaemia it increases both red and white blood corpuscles. For chorea in dogs, commence with a small dose, three times daily and increase a min- imum per dose everj^ third or fourth day until the physio- logical limit is reached as described under '(Toxicology of Arsenic) . Actions on the Skin. — Administered internally it stimulates the deiTnis and hastens the removal of epi- dermal cells ; hence it is useful in all chronic skin diseases, as chronic eczema, scab, mange and warts. To remove warts that occur in the mouth and on the muzzle of animals, give internally and apply locally. Fowler's solution. In chronic skin diseases use Donovan's or Fowler's solution or acidum arcenosum and sulphur mixed in the feed. Useful internally in successive erup- tions of the skin boils and in chronic urticaria. External Uses. — The white arsenic or arcenous acid is used to slough out tumors, fistulae, quittors, etc. But I would not recommend it as it is too painful. It is valuable in the treatment of foot-rot. The affected ani- mals should be slowly driven through a trough con- taining a solution of arsenic. It is used extensively for sheep and cattle to destroy ticks. In this way, ani- mals are sometimes poisoned, as it drips on the grass and other animals eat it. Toxicology or Arsenic. — Full medical doses if long continued, cause edema and itching of the eyelids, increased flow of saliva nausea, diarrhoea or dysentery, weak heart, soreness to the touch over the region of the stomach, itchy skin with small eruptions, jaundice and albuminuria. In long continued doses it diminishes exidation, decomposes albuminoid tissues and produces fatty degeneration ; also lessens the glycogenic functions of the liver. Chronic Arsenical Poisoning. — Is common in the ACTIONS, USES AND DOSE 61 vicinity of either tin or copper smelting plants. The symptoms are as follows: indigestion thirst, wasting, chronic diseases of joints and bones, the knee joints swell, the animal becomes lame and hide-bound, hair falls off, skin gets rough and scurfy, teeth get black and fall out and necrosis of the bones follow. Antagonists and Incompatibles. — The salts of iron, magnesia, lime, and astringents, are chemically incompatible. The hydroxide of iron, or as it is also known, hydrate sesquioxide of iron, freshly made and in soft magma is the antidote to arsenic. To dogs give from half to one tablespoonful eveiy five or ten minutes. From eight to twenty grains of the antidote are required to each grain of arsenic swallowed (when it can be de- termined) . The stomach should first be emptied by the use of cathartics or stomach pump and then give the antidote, and follow with demulcents as oil, milk and mucilaginous drinks. Also administer dihients, as weak alkaline w^ater. Iodide of potassium is valuable as a antidote of arsenical poisoning and should be admin- istered to promote elimination of the poison. In the absence of the antidote, chalk, magnesia and lime water may be freely given. These agents act mechanically by developing the poison and preventing absorption. Dialysed iron is recommended as efficacious as an antidote in doses of five to fifteen minimums for doss. ASPIDIUM— MALE FERN Derivation. — The rhizome of Aspidum Filix — mas. Collected late in the autumn, divested of its roots, leaves and dead portions, and carefully dried. Male fern should not be kept more than a year. Habitat. — The male fern grows wild throughout most temperate regions, on the sides of roads and in open woods, especially where the soil is light. Properties. — Its root stock is perennial, about a foot long and two inches thick; is scaly, tufted, greenish- bro^^ai, and firmly fixed in the ground by numerous black root fibers. The dried root has a disagreeable 62 VETERINARY MEDICINES odor, and a sweet, astringent, nauseous taste. Powdered male fern should be freshly prepared and have a bright green color. Dose. — The powdered male fern is given to horses and cattle in doses of 4 to 6 ozs.; sheep and pigs, 1 to 4 ozs. ; dogs and cats, 1/2 to 2 ozs. The pow der is bulky, and less certain than the oleoresin of aspedium. PREPARATIONS OLEORESINA ASPIDII—OLEORESIN ASPI- DIUM— OLEORESIN MALE FERN Made by percolation with ether, distillation and evaporation of the ether. Dose. — Horses and cattle, 3 to 6 drs.; sheep and pigs, 1 to 2 drs. ; dogs and cats, 15 ms. to 1 dr. Action and Uses. — Male fern is irritant, vermicide laxative, large doses of the drug cause hemorrhagic gastro-enteritis, tremors, weakness, stupor, coma, acute nephritis and cystitis. Oleoresin of male fern is one of the most effectual remedies for tapeworm, particularly those inhabiting dogs. BELLADONNAE FOLIA— belladonna LEAVES Origin. — Belladonna is the leaves of a plant known as deadly nightshade. It grows wild in some parts of Great Britain, and is also cultivated to a great extent. The dried leaves of atropa belladonna yield, when assayed by the U. S. P. process, not less than 0.35 per cent of mydriatic alkaloids. Usually of a dull brownish- green color, the leaves much wrinkled and matted to- gether, frequently with the flowering tops intermixed; odor distinctly narcotic, especially on moistening; taste somewhat bitter and acrid. Contains not less than 0.5 per cent atropine. The powdered leaves are character- ized by few hairs and numerous small arrow-shaped crystals of calcium oxalate. Dose. — ^Of the powdered leaves, horses and cattle, 1/2 to 1 oz. ; sheep and pigs, Yo to 2 dr. ; dogs, 1 to 5 grs. ACTIONS, USES AND DOSE 63 PREPARATIONS EXTRACTUM BELLADONNAE FOLIORUM— EXTRACT OF BELLADONNA LEAVES Made by percolation with dilute alcohol and evapora- tion to pilular consistence. Used in preparing the un- guentum helladonnae. Contains 1.4 per cent of mydria- tic alkaloids. Dose.— Horses and cattle, 10 to 20 grs.; sheep and pigs, 2 to 4 grs. ; dogs, l/g to 1/2 gr. TNCTURA BELLADONNAE FOLIORUM— TINCTURE OF BELLADONNA LEAVES Belladonna leaves 100, dilute alcohol to make 1,000, made bj^ maceration and percolation. (Strength 10%.) Dose. — Dogs, 3 to 30 ms. UNGUENTUM BELLADONNAE— BELLA- DONNA OINTMENT Extract of belladonna leaves, 10; dilute alcohol, 5; hydrous wool fat, 20; benzoinated lard, 63. BELLADONNAE RADIX— BELLADONNA ROOT Derivation. — The dried root of atropa belladonna yielding, when assayed by the U. S. P. process not less than 0.5 per cent of mydriatic alkaloids. Constituents. — Same as leaves. Contains not less than 0.5 per cent atropine. PREPARATIONS FLUIDEXTRACTUM BELLADONNAE RADI- CIS— FLUIDEXTRACT OF BELLA- DONNA ROOT Made by maceration with alcohol and water and evaporation. One cc. of the extract = one gm. of bella- donna root. Standardized so that 100 cc. of the fluid- extract contain 0.5 gm. of mydridatic alkaloids. This is one of the most reliable preparations of belladonna. Dose. — Horses, 1 to 2 dr.; cattle, 2 to 3 dr.; sheep and pigs, 10 to 15 ms. ; dogs, 1 to 3 ms. 64 VETERINARY MEDICINES LINIMENTUM BELLADONNAE— BELLA- DONNA LINIMENT Made by adding camphor, 50 parts to fluidextract of belladonna to make 1,000 parts (U. S. P.). ATROPINAE SULPHAS— SULPHATE OF ATROPHINE An alkaloid obtained from belladonna. As it occurs in commerce, it is always accompanied by small pro- portion of hyoscyamine extracted along with it, from which it cannot readly be separated. Derivation. — Atropine is obtained from a strong tincture of the root. Properties. — A white crystalline powder, very soluble in water and alcohol. Dose. — Horses, Yl to ly^ grs.; cattle, 1 to 2 grs.; sheep and pigs, 1/20 to 1/12 gr. ; dogs, 1/150 to 1/50 srr. The doses should be considerablv reduced when used with morphine. Incompatibles. — ^Caustic alkalies; antagonize phy- siologically by pilocarpine and physostigma throughout almost whole range of its influence, and opium within a certain limitation, prevents the respiratory failure, which is the cause of death. Action. — Belladonna is an irritant narcotic, a mydriatic, an antispasmodic and anodyne. In small doses a cardiac, respiratory and spinal stimulant; in large doses a paralyzer of the sensory and motor nerve endings and a stimulator of the entire sympathetic system. It produces dryness of the mucous membrane of the throat, mouth, nose and pharynx, and at first lessens the gastric and intestinal secretions, but soon produces them in large quantities. It is anti-galactogogue, that is, it arrests secretion of milk. The heart rate is at first slowed, but soon becomes very rapid and vigorous, the pulse being doubled in rapidity; arterial tension is raised and the circulation greatly increased. The pupils are dilated by the local or systemic use of the drug. ACTIONS^ USES AND DOSE 65 The brain is congested by belladonna, a busy delirimn being j)i'Oclu€ed, and hallucinations with mental disorder, due to a selective action on the cell of the gray matter. The spinal cord is stimulated from the second cervical vertebrae to the tenth dorsal, resulting in paralysis of the motor nerves, both central and peripheal, power being lost in hind extermities first. The respiration is increased and the temperature is raised by the increased circulation; metamorphosis is greatly promoted. Belladonna and atrophine are rapidly diffused and quickly eliminated by the kidneys. By its paralyzing effect on the terminal nerve filaments, it relaxes the bronchial tubes and checks the secretion of the bronchial mucous membrane; it checks secretion of saliva and milk in the same way and causes dryness of the skin. Uses. — Belladonna and atrophine is indicated any- where that an antispasmodic and anodyne is needed. Is servicable in catarrh, pharangitis and bronchitis to check secretion in second stage; heaves, especially asth- matic heaves, combined with gelsemium and lobelia, fol- lowed by Fowler's Solution; in influenza, it stimulates the weakened heart, besides having other good effects. In the first stage of respiratory diseases, belladonna alone, or combined with aconite or other febrifuges and expectorants; in cough, especially spasmodic or when due to irritation of the throat; in heart failure or heart weakness, hypodermic injections of atrophine are bene- ficial; in spasmodic colic one to two drachms of the fluid extract to a dose, but one drachm is usually sufficient; as a powerful antispasmodic and anodyne, atropine and morphine combined; small doses are given in constipa- tion of the bowels, combined with nux vomica; small doses with purgatives are said to aid their action. In tetanus give one to two drachms of the extract two or three times daily; in paralysis of the throat of tetanus the fluid extract combined with soap liniment or used alone externally; in cerebro-spinal meningitis, belladonna and ergot alternated with aconite is rational treatment, conjoined with the external treatment. It 66 VETERINARY MEDICINES allays irritations of the bladder, rectum, and uterus, es- pecially if combined with cannabis indica. In contraction or rigid os the extract applied directly, quickly relaxes and allows parturition; it is well to see if this is necessary before giving ergot. Used extensively in examinations and diseases of the eye. Atrophine sulphate is used locally to dilate the pupil, assisting in the detection of cataracts or other disorders of the eye and testing the condition of the refracting media; for dilating pupil use a solution of four grains of the atrophine to one ounce of distilled water; a few drops are placed into the eye, for inflammation of the eye with great irritation; belladomia may be combined with cocaine; in iritis. Antidote. — In poisoning,' tannic acid should be used. BENZOINUM— BENZOIN A balsamic resin obtained from styrax benzoin dryander, and another unidentified species of stryrax. It contains benzoic acid in the proportions 12 to 20 per cent to which it probably owes its action. Habitat. — Southern Asia. Properties. — In pebble-like ])odies or tears, slightly flattened, straight or curved, yellowish to rusty-brown externally, milky-white on fresh fractures internally. Odor agreeable, balsamic; taste slightly acrid. It is almost w^holly soluble in five parts of moderately warm alcohol, and in solutions of the fixed alkalies. When heated it gives off fumes of benzoic acid. Constituents. — Benzoic acid, cinnamic acid; resins and a volatile oil. PREPARATIONS ADEPS BENZOINATUS— BENZOINATED LARD Made by melting lard 1,000, with benzoin 20; and straining, used as an ointment itself, and as a base for other ointments. ACTIONS, USES AND DOSE 67 TINCTURA BENZOINI— TINCTURE OF BENZOIN JMade by maceration of benzoin 200, in alcohol; filtration and addition of alcohol to make 1,000. Dose.— Horses and cattle, l/o to 1 oz. ; sheep and pigs, 2 to 4 drs.; dogs, 30 to 60 ms. TINCTURA BENZOINI COMPOSITA— COM- POUND TINCTURE OF BENZOIN Commonly known as Friar's Balsam. Benzoin, 100; pm-ified aloes, 20; storax, 80; balsam of tolu, 40; alcohol to make 1,000. Made by digestion and filtration. ACIDUM BENZOICUM— BENZOIC ACID Derivation.— Obtained from benzoin by sublima- tion, or artificially prepared. Properties. — White feathery crystals of a peculiar, agreeable odor, and warm acidulous taste, sparingly soluble in cold water (1 to 500) , more soluble in boiling water, 1 in 15, and in 2 parts of alcohol; borax renders it more soluble. Incompatibles. — Alkalies, ammonium carbonate. Dose. — Horses and cattle, 2 to 4 drs.; sheep and pigs, 1/2 to 1 dr.; dogs, 5 to 15 grs. AMMONII BENZOAS— AMMONIUM BENZOATE Made by the action of benzoic acid and ammonia water. In white crystals. Soluble in 10.5 parts of water; in 25 parts of alcohol. Dose. — Same as benzoic acid. SODII BENZOAS— sodium BENZOATE Made by the action of a hot solution of sodium car- bonate of benzoic acid. Occurs in a white powder. Soluble in 1.6 parts of water; in 43 parts of alcohol. Dose. — Same as benzoic acid. LITHII BENZOAS— LITHIUM BENZOATE Made by decomposing lithium carbonate with ben- zoic acid. It should contam not less than 98.5 per cent 68 VETERINARY MEDICINES of pure lithium benzoate, and should be kept in a well stopped bottle. Soluble in 3 parts of water, and in 13 parts of alcohol. Dose. — Same as benzoic acid. Actions. — Benzoin is a mild stimulant, expectorant and antiseptic ; benzoic acid is quite powerful ; it renders alkaline urine acid; it is used to dissolve phosphatic calculi. Uses. — The tincture and compound tincture are used as stimulants and antiseptics for wounds and sores. Benzoic acid, when administered internally, acts mildly as an antiseptic to the bladder; useful in catarrh of the bladder. Benzoate of soda is used in bronchial catarrh. Benzoate of ammonia is used to dissolve phosphatic calculi. Lithium benzoate has been highly recommended as a remedy for rheumatic effections. CALAMUS— SWEET FLAG The unpeeled, dried rhizome of acorus calamus Linne. Habitat. — United States, Europe, Western and Southern Asia, including India and Japan. Properties. — The leaves as well as the root have an aromatic odor; but the root only is employed. It should be collected late in the autumn, or in the early spring. After removal from the ground, the roots are washed, freed from their fibers, and dried with moderate heat. By drying they lose nearly one-half their diam- eter, but are improved in odor and taste. Constituents. — Acorin, a liquid, yellow glucoside, having a bitter taste ; a volatile oil ; calamine ; choline. Dose. — Horses and cattle, 1 to 2 ozs.; sheep and pigs, 1 to 3 drs.; dogs, 15 grs to 1 dr. PREPARATIONS FLUIDEXTRACTUM CALAMI— FLUID- EXTRACT OF CALAMUS Made by maceration, percolation and evaporation. Dose. — Horses and cattle, 1 to 2 ozs.; sheep and pigs, 1 to 3 drs. ; dogs, 15 ms. to 1 dr. ACTIONS^ USES AND DOSE 69 Action and Uses. — Calanus is a feeble aromatic bitter, and is therefore useful in loss of appetite and in- digestion associated with mild forms of flatulence. The powdered root is used as a base in powders, balls and electuaries. It is harmless, and the dose is therefore unimportant. CALX LIME— CALCIUM OXIDE Derivation. — Prepared by burning white marble, oyster shells, or the purest varieties of natural calcum carbonate ; to expel carbon dioxide. Properties. — Lime is in hard, white or grayish- white masses, which in contact with air gradually attract moisture and carbon dioxide and fall to a white powder; odorless; of a sharp caustic taste. Soluble in water; insoluble in alcohol. Actions. — Antacid, gastric sedative, intestinal as- tringent, desiccant. Uses. — Its principal use is in diarrhoea, combined with opium tannic acid, also antiseptics; makes a very good dusting powder over abraided surfaces. Lime water and milk equal parts and sweetened is very good for puppies raised on a bottle as it is easily digested. LINIMENTUM CALCIS— LIME LINIMENT (Carron Oil) Composed of lime water and raw linseed oil equal parts; is very good for burns. Carron oil given in- ternally is a good, mild laxative and antacid for horses with heaves. It is given on the food. It is also an ex- cellent purgative for foals and calves in the treatment of diarrhoea and indigestion. CALUMBA The dried transversely cut slices of the root of Jaterorhiza Columba. Habitat. — Mozambique, East Africa. Cultivated in the East Indies. Properties. — ^Odor slight, taste bitter. It contains 70 VETERINARY MEDICINES calumbin, a neutral bitter, crystalline substance; an al- kaloid, berberine ; calumbic acid and starch. Dose. — Horses and cattle, l/o to 1 oz. ; sheep and pigs, 1 to 2 drs. ; dogs, 5 to 30 grs. PREPARATIONS FLUIDEXTRACTUM CALUMBAE— FLUID- EXTRACT OF CALUMBA Made by maceration and percolation with alcohol and water, and evaporation. Dose. — Same as columba. TINCLURA CALUMBAE— TINCTURE OF COLUMBA Made by maceration and percolation of calumbae, with alcohol and water. Dose. — Horses and cattle, 2 to 4 ozs.; sheep and pigs, 14 to 1 oz.; dogs, 1 to 2 dr. Actions and Uses. — Calumba is a bitter, gastric stimulant and carminative. It promotes secretion of gastric juice and improves the appetite. As it contains no tannin it is devoid of astringency and may be pre- scribed with preparations of iron. Like qussia, calumba infusion may be used to destroy worms in the horse's rectum. CAMBOGIA— GAMBOGE A gimi-resin obtained from garcinia hunburii Hooker filius (nat. ord. guttiferae). Habitat. — Southern Asia. Properties. — In cylindrical pieces, usually hollow in the center, externally grayish orange-brown, longitud- inally striate ; fracture conchordal, orange-red, waxy and somewhat p orous; inodorous; taste very acid. Powder bright yellow, sternutatoiy, containing few or no starch grains. Not more than 25 per cent should be soluble in alcohol; ash not more than 3 per cent. Dose. — Horses, l/o to 1 oz. ; cattle, 1 to 1% oz.; sheep and pigs, 20 grs. to 1 dr.; dogs, 5 to 10 grs. Actions. — Gamboge is a drastic, hydragogue purga- ACTIONS^ USES AND DOSE 71 tive, and slightly diuretic. Its action is uncertain and often violent, with production of griping pains. Large doses cause vomiting in the dog and gastro-enteritis in all that cannot vomit. Gamboge is dissolved by the bile and alkaline intestinal juices and some of it is absorbed, since it colors the urine j^ellow in its elimination and occasions diuresis. Uses. — Gamboge should never be prescribed alone. It has been recommended in obstinate constipation, indi- gestion, impaction of the third stomach, and brain dis- eases of cattle, conjoined with salts, or nibbed up with water and an equal amount of aloes (each one ounce) . CAMPHORA— CAMPHOR— GUM CAMPHOR Derivation. — Camphor is obtained from a tree known as Laurel Camphor. The branches are cut and boiled in water and the camphor rises to the top in the form of gum. Habitat. — Japan, China and Sunda Islands. Properties. — White translucent masses, of a tough consistence and a crj^stalline structure, readily pulver- izable in the presence of a little alcohol ether or chloro- form; having a penetrating characteristic odor, and a pungent aromatic taste. Very sparingly soluble in water, but readily soluble in alcohol, ether, chloroform carbon disulphide, petroleum, benzine and in fixed and volatile oils. On exposure to the air, it evaporates more or less rapidly at ordinary temperatures, and when mod- erately heated, it sublimes without leaving a residue. Dose. — Horses, 1 to 3 drs. ; cattle, 2 to 4 drs. ; sheep and pigs, 15 grs. to 1 dr. ; dogs, 3 to 30 grs. PREPARATIONS AQUA CAMPHORAE— CAMPHOR WATER Tincture camphor 8, with alcohol 8 and purified talc 15; then with water to make 1000 filter. Camphor water has this advantage over camphor in substance, that the latter is with difficulty dissolved by liquids of the stomach ; but it is too feeble a preparation for use when a decided effect is desired ; it is, however, 72 VETERINARY MEDICINES an excellent vehicle for the administration of more active substances. Dose. — Ad lib. SPIRITUS CAMPHORAE— SPIRIT OF CAMPHOR Made by dissolving gum camphor, 100, in alcohol, 800; filter and add alcohol to make 1000. Dose. — Horses and cattle, 1 to 2 oz. ; sheep and pigs, 2 to 4 dr.; dogs, 30 grs. to 1 dr. Spirit of camphor is frequently prescribed in colic mixtures. LINIMENTUM CAMPHORAE— CAMPHOR LINIMENT— CAMPHORATED OIL Made by adding camphor, 200 parts to cottonseed oil, 800 parts. It is a mild rubefacient; is used in cough mixtures, also used locally in liniments. CERATUM CAMPHORAE— CAMPHOR CERATE Composed of camphor liniment, 100 parts, white wax 350 parts, white petrolatum 150 parts, lard 400 parts. For external use only. LINIMENTUM SAPONIS— SOAP LINIMENT Composed of soap 60 ])arts, camphor 45 parts, oil of rosemary 10 parts, alcohol 725 parts, water to make 1000 parts; for external use only, as a mild stimulating and anodyne liniment, usually combined with other medicines and used for its stimulating properties. CAMPHORA MONOBROMATA — MONOBRO- MATED CAMPHOR Derivation. — ]Made by heating cani]>hor and bro- mine in the proper chemical proportions for three hours in a sealed tube, in a water bath. The cry- stalline masses washed with water, recrystallized from alcohol after treatment with animal charcoal, washed ACTIONS, USES AND DOSE 73 with an alcoholic solution of potassium hydroxide, then with much water and finally recrystallized from a mix- ture of alcohol and ether. It is very easy to prepare the monobromide on a small scale in this way. Properties. — Colorless, prismatic needles or scales, permanent in air, almost soluble in water, freely solu- ble in alcohol, ether, chloroform and fixed and volatile oils; used frequently as an anaphrodisiac. Dose. — Dogs, 2 to 10 gr. Actions. — Antispasmodic or nen^e stimulant, ano- dyne, antiseptic, diaphoretic, a stimulant, expectorant, a cerebral excitant or narcotic, a gastro-intestinal irritant, a rubefacient or counter-irritant and also carminative. It has an acrid hot taste, irritates the skin and mucous membrane, large doses causing gastro-intestinal inflam- mation. Medical doses stimulate the vaso-motor system and the cardic-motor ganglia, and lessens the influence of the pneumogastric (inhibitory nerve) ; afterwards stim- ulates the accelerator apparatus, thus increasing the circulation and raising arterial tension; it also stimu- lates respiration, and in man stimulates mental activity even to intoxication. Uses. — In catarrhal conditions, cough mixtures, acute and chronic bronchitis, pneumonia. The spirits of camphor is used in colic mixtures ; also locally to stop secretions of milk applied frequently; in cardiac weak- ness; stangury may be relieved by one to two ounce doses of the spirits for the horse. Spirits of camphor is used in Thumps. Camphor is a valuable medicine in dian*hoea, partic- ularly in serious variety, and in that form following ex- posure to cold. It is not useful in inflammatory con- ditions, but checks secretions and pain. Spirit of camphor and nitrous ether are efficient in relieving irritation of the genito-urinaiy tract. Cam- phor has proven of service in purpura hemorrhagica of horses given three times daily in capsules or pills. 74 VETERINARY MEDICINES CANTHARIS — CANTHARIDES — SPANISH FLY— BLISTER BEETLES Derivation. — Cantharides is obtained from flies which receive the name Spanish Fly on account of so many of them coming from Spain, but they are also imported from Germany and Russia; living chiefly on climbing shrubs and trees. Description. — About 20 to 25 m. m. long and about 6 mm. broad, flattish cylindrical, with filiform antennae, black in the upper part, and with long wing-sheaths, and ample membranous, transparent, brownish wings, else- where of a shining, coppery-green color. The powder is grayish-brown, and contains green shining particles. Odor strong and disagreeable; taste slight, afterwards irritating. Cantharides deteriorate with age and should be kept unpowdered in tightly stoppered bottles. Dose. — Of the powdered fly, horses and cattle, 5 to 10 gi'. ; sheep and pigs, 3 to 6 gr. ; dogs, I/2 to 2 gr. TINCTURA CANTHARIDIS— TINCTURE OF CANTHARIDES Prepared by percolation of powdered cantharides, 100 parts, with alcohol to make 1000 parts. Dose. — Horses and cattle, 2 to 4 dr.; sheep and pigs, 15 to 30 m. ; dogs, 2 to 15 m. Actions. — Externally, is rubefacient, irritant, vesi- cant, according to the strength used, it promotes water blister; counter-irritant, etc. Cantharides acts more powerfully on the skin of horses and dogs than on that of cattle and swine. If applied over an extensive sur- face, absorption and poisoning ma}^ occur. Internally cantharides is an irritant, and produces its effects on any ])art which the free cantharidin is brought into contact. When swallowed it irritates the digestive mucous membrane; large doses ]>roduce gastro- enteritis. The active cantharidin is absorbed, and in the blood forms a non-irritant albuminoid, but in the kidneys is again liberated, developing its characteristic irritation, medical doses stimulating the urino-genital tract, causing diuresis, and in some animals increases ACTIONS^ USES AND DOSE 75 sexual appetite; full doses induce inflammation, slow and painful discharge of bloody urine. Uses. — Externally cantharides is employed as a blister laibefacient or as a counter-irritant; blisters are formed in from two to eight hours. If repeatedly used it may cause sloughing of the tissue; cantharides may be used wherever a blister or counter-irritant is required, except in inflammation of the urinaiy organs, as it is absorbed and will increase the inflammation. Cantha- rides conjoined with red mercurous iodide and adaps is usually employed in the treatment of diseases of the bones, joints, bursae, ligaments and tendons. In ex- ostoses, as bone spavin and ring bone, used most ef- fectively after the actual cautery, to secure absorption and resolution, or anchylosis. Always clip off the hair close before applying a blister, tie or muzzle the animal so he cannot bite it; leave blister on forty-eight hours, then wash and grease the parts daily. A cantharides blister is sometimes beneficial in hastening the forma- tion of abscess (distemper) ; also to stimulate indolent ulcers or wounds ; it causes swelling and closes the open- ing of small umbilical hernias of foals and calves. It is also valuable in closing and sealing punctured wounds into joints and synovial cavities. The tincture of can- tharides can be applied once or twice daily, full strength, when the exudation of much serum is desired. Can- tharides is seldom used internally except in incon- tinuence of urine from debility or partial paralysis of the bladder. Seldom used to increase sexual desire. The tincture of cantharides should be employed when the drug is administered internally. CAPSICUM— RED PEPPER— CAYENE PEPPER The dried ripe fruit of Capsicum fastigiatum Blume deprived of its calyx. Habitat. — Tropical America; cultivated also in other tropical countries. Properties. — Capsicum when ground has a hot, pungent, spicy taste. 76 ^^ETERIXAKY MEDICINES Constituents. — Capsicum contains capsaicin, a crystallizable, acrid body; capsicin, a volatile alkaloid; a fixed oil ; fatty matter ; resin. Dose. — Horses, 20 gr. to 1 dr.; cattle, 1 to 2 dr.. sheep and pigs, 5 to 10 gr.; dogs, 1 to 5 gr. PREPARATIONS FLUIDEXTRACTUM CAPSICI— FLUID EX- TRACT OF CAPSICUM Made by maceration and percolation with alcohol, and evaporated, so that 1 cc. equals 1 gm. of the crude drug. Dose. — Horses, 10 m. to 1 dr.; cattle, 1 to 2 dr.; sheep and pigs, 5 to 10 m. ; dogs, 1 to 5 m. TINCTURA CAPSICI— TINCTURE OF CAPSICUM Made by percolation of capsicum, 100, with alcohol and water to make 1,000. Dose. — Horses, 2 to 4 dr.; cattle, l/o to 1 oz. ; sheep and pigs, 20 m. to 1 dr. ; dogs, 5 to 30 m. OLEORESINA CAPSICI— OLEORESIN OF CAPSICUM Made by ]:>ercolation with acetone, distillation and evaporation of the residue. Dose. — Horses, 10 to 30 m.; cattle, 14 to 1 dr.; sheep and pigs, 1 to 5 m. ; dogs, i/o to 1 m. Action and Uses. — Capsicum and its preparations are irritants, stimulating stomachics, carminatives and rubefacients. Large doses, especially in carnivora and omnivora, are irritant poisons, inflaming the alimen- tary and sometimes also the urino-genital mucous mem- branes. Properh^ regulated doses are indicated in atonic indigestion and flatulent colic in horses combined with ammonium carbonate. It may be advantageously combined witli ])itters, as nux vomica. Capsicum is a favorite stimulant and tonic remedy — to the digestion — with poultry fanciers. It also increases the laying of eggs when given to hens. Externally capsicum is rube- ACTIONS, USES AND DOSE 77 facient and counter-irritant, producing about the same degree of irritation as mustard, but causing considerable pain. It ought not be used for blistering ointments or for setons. CHLOROFORMUM— CHLOROFORM A liquid consisting of 99 to 99.4 per cent, by weight, of absolute chloroform, and 0.6 to 1 per cent alcohol. Derivation. — ^Alcohol and water are heated in a still to 37.70 C. (100° F.), when chlorinated lime is added and chloroform is evolved. Properties. — Chloroform is a heavy, clear, colorless, mobile and diffusible liquid, of a characteristic ethereal odor, and a burning sweet taste. Specific gravity not below 1.476 at 25° C. (77° F.). Soluble in 200 times its volume of cold water, and in all proportions in alco- hol, ether, benzol, benzine and the fixed and volatile oils. Chloroform is not inflammable. Chloroform should be kept in dark amber colored well stoppered bottles in a cool and dark place. Dose. — Horses and cattle, 1 to 2 dr. ; sheep and pigs, 20 to 40 m. ; dogs, 2 to 8 m. Should be well diluted with glycerine, syrup, eggs or diluted alcohol ; the above dose can be repeated every two or three hours. PREPARATIONS AQUA CHLOROFORMI — CHLOROFORM WATER A saturated solution of chloroform and distilled wa- ter, it should contain one-half per cent of chloroform. Chloroform water has been proven to be an excellent vehicle for administering active remedies, and, owing to its antiseptic properties, mixtures having it for a basis resist decomposition longer than those made with ordi- nary water. Used extensively as a vehicle in cough and diarrhoea mixtures. LINIMENTUM CHLOROFORMI — CHLORO- FORM LINIMENT Made, from chloroform, 300 parts, soap liniment 700 parts. 78 VETERINARY MEDICINES SPIRITUS CPILOROFORMI Made from chloroform 60 parts, alcohol, 940 parts. Dose. — Horses and cattle, 1 to 2 oz. ; sheep and pigs, 2 to 4 dr. ; dogs, 20 to 40 m. CHLOROFORM EMULSUM— EMULSION OF CHLOROFORM Made from chloroform, expressed oil of almond, tragacanth and water. Should contain four per cent of chloroform. A good agent and vehicle for diarrhoea and vermifuge mixtures for small animals. Dose. — Dogs, 2 dr. to 1 oz. ; cats, l/o to 1 dr. Actions. — Chloroform is a topical irritant, anti- septic, parasiticide, carminative, antispasmodic and anal- gesic. Full doses quickly and ])owerfully ])aralyze the cerebro-spinal nervous system ; chloroform kills by para- lyzing the heart and respiration; the latter effects are most rapidly produced when the drug is inhaled. Chlor- oform is the general anaesthetic most used for veterinary purposes except for dogs. Externally it is rubefacient if confined or even sup- purant. It also acts as a refrigerant, anodyne and local anaesthetic if not confined. It penetrates the skin very readily and on this account is commonly used in lini- ments to aid in the absorption of other medicines. Chloroform compared to ether is much more irri- tating to the mucous membrane, and causes violent gastro-enteritis, if swallowed undiluted; it is less stimu- lating and more depressing to the heart and circulation. For inhalation it requires much more air; is less irri- tant to the air passages than ether; is uninflammable, more pleasant, more prompt in action, has a shorter stage of excitement, causes a more profound narcosis, and is not so nauseating as ether and is cheaper. Sta- tistics show it to be five times more fatal than ether. The results of various experiments show that chloro- form and ether both act in the same manner upon the ACTIONS^ USES AND DOSE 79 heart and respiration, paralyzing the latter first; but chloroform acts much more quickly and powerfully than ether in both directions. But when chloroform is in- haled in a concentrated form it generally paralyzes the heart first. Uses. — Chloroform should be used as an aid in pain- ful and prolonged cases of parturition, especially where you have tumultuous contraction of the uterus, or rigid contraction of the os. Use just enough by inhalation to dull the pain and relax the parts; it will aid you in your efforts to rectify abnormal presentations by relax- ing the parts. Internally it is used in spasmodic and flatulent colic as it is an antispasmodic carminative and anodyne in its effects ; chloroform combined with belladonna and opium is very beneficial in spasmodic coughs, given in linseed gruel or water, well diluted; in liniments about one or two ounces to the ])int. Chloroform is used in chronic diarrhoea with other medicines, such as morphine, cap- sicum, camphor, oil of peppermint and ether. It is also a good taeniacide. ANESTHESIA Anesthesia is divided into three stages ; the stimu- lant, anaesthetic and paralytic. In the first stage there is struggling and excitement, due partly to the action of the drug and partly to fright. The local irritant action of the vapor causes choking and coughing, v/hich also induces struggling. The respiratoiy and cardiac centers are temporarily stimulated, as a consequence of which the pulse and res- piratory movements are increased in force and frequency and blood tension is raised. The smaller animals, particularly the dog, may vomit during the first stage of anaesthesia. In the first stage the dog may bark, whine or howl, the horse neighs and groans; other animals give expression to sounds more or less characteristic to their species. The second or anesthetic stage is characterized by 80 VETERINARY MEDICINES loss of consciousness, sensation, motion and partial loss of reflex action and is that state suitable for operations. The stimulating action of the anesthetic has passed and there is now depression of the cerebral functions, the motor centers. The voluntary muscles are com- pletely relaxed, the sphincters occasionally, the patient lies aijsolutely motionless, the cornea fails to respond to irritation, i. e., winking is not produced when the cornea is lightly touched w^ith the finger. Sometimes the muscles are rigid and twitching during this stage of anesthesia, though sensation and consciousness are absent. 'In the anesthesia stage the ]nilse is slow, full and strong, due to lowered blood pressure, the breath- ing is slow and shallow but regular. The third or paralytic stage, which must be carefully watched against, poisoning is beginning and there is depression of the three great medullary center control- ing the heart, respiration and vascular tension and also the posterior reflex centers of the spinal cord, so that the urine and faeces are passed involuntarily. The pas- sage of urine frequently occurs in the first stages of anesthesia and should not of itself be considered a danger mark. When the pulse becomes rapid, feeble and irregular, the breathing is at first stertorous and then the respiratory movements become shallow and weak, with long intervals intervening between them; this irregularity is a most important danger sign. The skin and mucous membrane often become cold and clammy. The pupils are usually widely dilated, though death may occur with either dilated or contracted pupils and consequently no dependence should be put in this sign unless there has been a sudden change from one con- dition of the pupils to the other. The three above men- tioned stages are conventional, and are not in any case so clearly defined in practice as they are described theoret- ically upon paper. The first stage may be either absent or prolonged, and the last stage should not be reached at all. ACTIONS^ USES AND DOSE 81 COMPARISON OF ETHER WITH CHLOROFORM Ether. Chloroform. More diffusible. Less diffusible ; vapor heavier. Inflammable and ex- plosive. Not inflammable, but vapor decomposes when exposed to a light and causes irritation and some times death. Stimulant to heart, ex- cept in enormous quanti- ties. Depresses powerfully the heart respiratory and vaso-motor centers in large doses. Irritating (due to ex- clusion of air) , may induce bronchitis and nephritis. Less irritating (on ac- count of more air being re- quired for dilution. Respiratory centers not so easily or suddenly de- pressed as by chloroform. Three to five times more dangerous ( deaths ) than ether. Larger quantities re- quired. Smaller quantities re- quired. Less rapid. Acts quickly. More expensive. Cheaper. Kills by respiratory fail- ure. Death from respiratory failure, combined with car- diac depression. Consequently you can see considering both drugs to be properly administered, all the advantages are in favor of chloroform except safety. Ether is to be preferred for dogs, cats and other small animals. Chloroform is especially dangerous for dogs, though horses stand it exceptionally well and it is preferable to 82 VETERINARY MEDICINES ether in large animals. The safety with which chloro- form may be administered to large animals frequently makes veterinarians careless; that is, they "force" the drug; they do not allow sufficient air for dilution, and though the patients may not die from the immediate effects of the drug their existence may be terminated in a few days from pneumonia or broncho-pneumonia (machanical), due to the irritating effects of the drug. Anaesthesia. — It is best to cast the large animals; after complete anaesthesia remove the hobbles. For dogs make a cone of a towel and paper, put a sponge in the bottom, allowing a small opening in the end to admit air; pour in ether a little at a time. In brain diseases or tumors of the brain, chloroform is dangerous. Horses with heaves or emphysema should not take chloroform; it is also dangerous in fatty degen- eration of the heart. Operations during incomplete anaesthesia, especially with chloroform, are dangerous; always produce complete anaesthesia, have the stomach empty, but don't fast animals for more than two or three meals. 'Things to rcmemher when administering an anaes- thetic : The operator must be skilled and give his atten- tion exclusively to the production of anaesthesia, watch- ing the respiration and pulse for signs of failure. Do not commence operation until anaesthesia is pro- found, until reflex action is abolished, which can be told by touching the eye with the finger; obey this, no matter how slight the operation. The utmost care should be exercised if the patient is very old or has fatty degenera- tion of the heart, or lung diseases. Great care should be exercised in operations about the mouth or trachea. See that no blood passes down the trachea. The stomach and bowels should be empty. This will cause less nausea and feed may be regurgitated and run down the trachea. When purchasing chloroform or ether for anaes- thetic purposes insist on the best ; it must be pure. ACTIONS, USES AND DOSE 83 Ether can be used almost pure, only a little air being necessarily allowed for dilution ; chloroform must have a large amount of air. In all classes of patients the head should be slightly raised, and watch the tongue so that it does not fall back over the larynx and suffocate the animal. Anaesthesia should be started very slowly; don't force either chloroform or ether. It is a good practice to have restoratives ready for use before commencing anaesthesia, as aqua ammonia fort., a hypodermic syringe and nitro-glycerin. CINCHONA Origin. — Cinchona is obtained from the bark of a tree (Cinchona Calisaya), which grows in South Amer- ica, East Indies and Jamaica. It contains at least five per cent of its peculiar alkaloids, of which not less than one-half should be quinine sulphate, which is the most important. Actions. — Cinchona is an astringent. Other than that cinchona and its alkaloids possess the same actions, that being, bitter tonic, stimulant, antiseptic, antiperi- odic, antipyretic, antiphlogistic, antimiasmatic, stom- achic and antif erment. Large doses are general depres- sants. Uses. — Cinchona and its alkaloids are recommended for all classes of patients as bitter stomachic and tonics. They stimulate the appetite, check abnormal gastro-in- testinal fermentation and counteract relaxed conditions of the intestines and the accumulations of mucus, which prove favorable to the development of worms. In troublesome cases of antonic indigestion in horses respond rapidly when quinine sulphate is frequently given in thirty to forty grain doses with half a drachm of dilute nitric or hydrochloric acid. Weak foals and calves suffering from relaxed condition of the bowels, following a dose of castor oil are often much benefited by a few doses of cinchona bark, hydrochloric acid dilute and brandy. Few medicines are so effectual as cinchona bark or 84 VETERINARY MEDICINES quinine sulphate in improving appetite and muscular strength and hastening convalescence from debilitating disease. They are advantageous in anaemia joined with iron salts. Good results are obtained from cinchona or quinine in the earlier stages of tuberculosis, in septicaemia and pyaemia in all animals ; in influenza, protracted cases of strangles, purpura and other similar diseases of the horse; in septic metritis in cows and ewes and in linger- ing cases of distemper in dogs. Their beneficial effects in these and other diseases probably depending on the action of quinine or micro-organisms or their products. It is often useful in rheumatism conjoined with salicylic acid or potassium iodide. Administered with cathartics, like other bitter tonics, it generally increases their activ- ity. Alternated with cod liver or olive oil and iron, quinine is the best tonic for weak dogs and those suffer- ing from chorea. Quinine and urea hydrochloride has recently come into use as local anaesthetic. One per cent solutions make a satisfactory substitute for cocaine, etc. It also has advantages over cocaine. It is non-toxic, it may be exposed to a boiling temperature and its anaesthetic effect for dogs after an operation, therefore aiding in dressing of wounds. Its anaesthetic effect comes on within five minutes to half an hour after being injected into the intended seat of operation. Speaking from practical experience, I prefer quinine and urea hydrochloride to cocaine or any of its allies. Dose. — Of the powdered cinchona bark: Horses, 2 dr. to 1 oz. ; cattle, 1 to 2 oz. ; sheep and pigs, 1 to 4 dr. ; dogs, 10 gr. to 1 dr. ALKALOIDAL SALTS OF CINCHONA— QUININAE SULPHAS— SULPHATE OF QUININE Dose. — As a tonic: Horses, 15 gr. to 1 dr.; cattle, l/o to II4 dr.; sheep and pigs, 5 to 10 gr.; dogs and cats, 1 to 2 gr. As antipyretic Dose: Horses and ACTIONS^ USES AND DOSE 85 cattle, 2 to 4 dr.; sheep and pigs, 15 gr to 1 dr.; dogs and cats, 5 to 10 gr. QUININAE ET UREAE HYDROCHLORIDUM —QUININE AND UREA HYDROCHLO- RIDE (NON-OFFICIAL) Soluble in 18 parts of water. Use hypodermically as a local anesthetic. COCAINAE HYDROCHLORIDUM — COCAINE HYDROCHLORIDE "The dried leaves of Erythroxylon Coca Lamarck (Fam. Erythroxylaceae), known commercially as Huanuco Coca, or of E. Truxillense Rusby, known com- mercially as Truxillo Coca, yielding when assayed not less than 0.5 per cent of the ether-soluble alkaloids of coca." U. S. "The dried leaves of Erythroxylum Coca, Lam., and its varieties." Habitat. — Cultivated in Peru and Bolivia and in- troduced into medicine by Koller in 1884. Derivation. — Cocaine hydrochloride is recovered by agitating an acidulated alcoholic solution of coca leaves with ether. The etheral liquid is made alkaline with sodium carbonate and evaporated. The residue is purified, deodorized, neutralized with hydrochloric acid and finally crystallized. Properties. — A colorless, transparent, monoclinic prism, flaky, lusterous leaflets or a white crystalline powder; permanent in air, containing no water of crystallization ; odorless ; of a saline, slightly bitter taste, and producing on the tongue a tingling sensation fol- lowed by numbness of several minutes' duration. Solu- ble in 0.4 part of water, 2.6 parts of alcohol and in 18.5 parts of chloroform at 25° C. (77° F.) ; soluble in ben- zine, petroleum benzine and ether. It leaves no residue on incineration. Its aquous solution is neutral to litmus paper. Dose. — Horses and cattle, 5 to 20 gr. ; sheep and pigs, 1 to 3 gr. ; dogs, % to 1 gr. Not much used inter- nally. 86 VETERINARY MEDICINES Action. — Cocaine in small doses is a cerebral, car- diac, respiratory and nervous stimulant and dieuretic; overdoses cause delirium with cardiac and respiratory failure. Cocaine is a powerful local anaesthetic; used for all animals in 4 to 10 per cent solution, usually a 4 to 6 per cent solution is strong enough for ordinary operations. Inject under the skin, into the muscular tissue or over nei*ve trunks for minor operations. Ap- plied to such structures as the eye, penis, tongue and other delicate mucous surfaces as the uterus, vagina, rectum, etc. It causes profound but temporary anaes- thesia over a small area; it causes rapid and extreme dilation of the pupil. Cocaine is injected for minor operations to prevent pain, such as neurectony, removing tumors, operations on the eyes, tongue, fistulae, firing, etc. For dogs it should be used with great caution, a two per cent solu- tion usually being enough and as little as possible being used. For the horse, as a rule, not more than two drachms of a five per cent solution should be injected subcuta- neously, lest restlessness, excitement, etc., ensue, which though not necessarily dangerous, may interfere with the operation. In using cocaine as a diagnostic agent for lameness, the fact must not be lost sight of that it is a cerebral stimulant and that if a large quantity is injected it may cause such a degree of excitement as to make the patient forget his lameness, thus leading the operator to believe that the improvement is due to anaesthesia below the point of injection, when the apparent remission from the lameness is of physical origin. Cocaine is advanta- geously used in painful eye affections. Its effects may be prolonged and the danger of its use lessened by dis- solving the cocaine in a 1 to 1000 adrenalin chloride solution. CRETA PRAEPARATA— PREPARED CHALK Derivation. — Native calcium carbonate, freed from most of its impurities by elutriation. ACTIONS^ USES AND DOSE 87 Properties. — A white, amorphous powder, often molded into conical drops; odorless and tasteless; per- manent in the air. Almost insoluble in water ; insoluble in alcohol. Dose. — Horses, 1 to 2 oz. ; cattle, 2 to 4 oz.; sheep and pigs, 2 to 4 dr.; dogs, 10 gr. to 1 dr. PREPARATIONS PULVIS CRETAE COMPOSITUS— COM- POUND CHALK POWDER Composed of chalk, 30 parts ; acacia, 20 parts ; sugar, 50 parts. Dose. — Dogs, 10 gr. to 1 dr.; cats, 1 to 5 gr. MISTURA CRETAE— CHALK MIXTURE Composed of compound chalk powder, 20 parts ; cin- namon water, 40 parts; water to make 100. Dose. — Dogs, 1 to 2 oz. ; cats, 1 to 2 dr. Actions. — Internally, chalk is the slowest acting antacid, because of its comparative insolubility and is of value when it can exert its long-continued influence throughout the digestive tract. It resembles bismuth in mechanically coating or protecting inflamed or irritable surfaces. It is not so astringent nor antiseptic as the bismuth salts, and these are generally preferable to chalk for the smaller animals. It is excreted unchanged in the feces. Externally it is a dessicant and slightly astringent powder, also protective. Uses. — Chalk forms a dusting powder for moist eczema, slight burns and intertrigo ; zinc oxide and starch (one to four) is, however, a better preparation. Chalk is the most useful antacid for diarrhoea accompanied by fermentation of the intestinal contents, while its local astringent and protecting influence assists in overcoming the trouble. It is especially good for foals and calves given in flour gruel and often conjoined with catechu, ginger and opium. Chalk may be given to dogs in pills or powder; to other animals in powder, capsules or electuary. Chalk is frequently prescribed suspended in flour, gruel, milk 88 VETERINARY MEDICINES or mucilage to the larger animals. The chalk prepara- tions are suitable for dogs and cats. CUPRI SULPHAS— COPPER SULPHATE- BLUE VITRIOL— BLUE STONE Derivation. — Boil metallic copper and sulphuric acid together. Dissolve product in hot water and crystallize. Properties. — Large, transparent, deep blue, tri- clinic crystals; odorless, of a nauseous, metallic taste; slowly efflorescent in dry air; soluble in water; almost insoluble in alcohol. Dose. — Horses and cattle, 1 to 2 dr. ; sheep and pigs, 20 to 40 gr; dogs, 1 to 2 gr. As a tonic and astringent, repeat two or three times daily; given either in capsule or in some mucilagenous solution, or in powder form, with some inert substance; when given as a tonic should be given at time of feeding, or right after eating. Actions. — Gastro-intestinal irritant, astringent, tonic, emetic in large doses; acts directly on the stomach; antiseptic and vermifuge. Uses. — Internally used as emetic, antidote for phos- phorus, atony of the bowels, dian-hoea, especially com- bined with dilute sulphuric acid opium; is supposed to prevent the development of farcy and glanders in ex- posed animals. LTsed externally as a caustic and stim- ulant; styptic, also used for foot-rot; for granular eye- lids, touch lightly over the granular siu'face with the sulphate of copper. DIGITALIS— FOXGLOVE The dried leaves of Digitalis purpurea Linne (Fam. Scrophulariaceae-, collected from plants of the second year's growth, at the commencement of flowering. Habitat. — Foxglove grows wild in the temperate parts of Europe, where it flowers in the middle of sum- mer. In this country it is cultivated for ornamental and for medical use. Properties. — Foxglove is without odor in the re- ACTIONS, USES AND DOSE 89 cent state, but acquires a faint narcotic odor when dried. The color of the dried leaf is a dull pale green, modified by the whitish down upon the under surface; that of the powder is a fine deep green. Constituents. — Digitalein, Digitonin, Digitalin and Digitoxin, the latter is most poisonous and active. Said to be cunuilative. Dose. — Digitalis leaves, horses, 15 gr. to 1 dr.; cat- tle, 30 gr to ll/^ dr. ; sheep and pigs, 5 to 15 gr. ; dogs, l/o to 3 gr. Active Principles. — Digitoxin — It occurs in cryst- als, soluble in alcohol and chloroform, slightly in ether, and insoluble in water ; said to be cumulative. Dose.— Horses and cattle, % to 14 gr. ; dogs, 1/250 to 1/50 gr. Digitalein, an amorphous, bitter substance, soluble in water and alcohol and non-cumulative. Dose. — Same as digitoxin. Digitalin, a very bitter, crystalline substance, solu- ble in alcohol, and slightly soluble in water and ether. Dose. — Same as for digitoxin. Digitonin, resembling or identical with saponin of senega. White, amorphous powder, soluble in water. It is a heart depressant, muscular paralyzant and pow- erful irritant, besides being antagonistic to digitalis. In addition to these principles there are: Digitin, an in- active substance. Digitalic and antirrhinic acids. Tan- nin coloring matter, starch, sugar, gum, a volatile oil, salts, etc., common to most vegetables. PREPARATIONS EXTRACTUM DIGITALIS— EXTRACT OF DIGITALIS Made by maceration and percolation with alcohol and water; distillation of alcohol and evaporation to pilular substance. Dose. — Horses and cattle, 5 to 10 gr. ; sheep and pigs, 1/2 to 2 gr. ; dogs, l/y to 1 gr. 90 VETERINARY MEDICINES FLUIDEXTRACTUM DIGITALIS— FLUID EXTRACT OF DIGITALIS Prepared by maceration and percolation with alcohol and water, and evaporating so that 1 c. c. equals 1 gm. of the crude drug. Dose. — Horses, 10 m. to 1 dr.; cattle, 30 m. to II/2 dr. ; sheep and pigs, 5 to 15 m. ; dogs, % to 2 m. TINCTURA DIGITALIS— TINCTURE OF DIGITALIS Composed of powdered digitalis 100 parts with suf- ficient alcohol and water to make 1000 parts. By ma- ceration and percolation. Dose. — Horses and cattle, 2 to 4 dr. ; sheep and pigs, 1/4 to 1 dr.; dogs, 5 to 20 m. INFUSUM DIGITALIS— INFUSION OF DIGITALIS Composed of digitalis 1.5 parts, alcohol 100 parts, cinnamon water 150 parts, boiling water 500 parts, cold water to make 1000 parts. By maceration. Dose. — Horses and cattle, 2 to 4 oz. ; sheep and pigs, ^ to 1 oz. ; dogs, 1 to 4 dr. There are several substitutes for digitalis found in commerce. Actions. — A cardiac and vascular tonic and stimu- lant, a motor excitant, paralyzant, anaphrodisiac, it is an indirect diuretic and an emetic, irritates the mucous membrane. The heart is slowed but the force is increased; digi- talis stimulates the cardiac motor ganglia, the inhibitory apparatus and the vaso-motor centers, contracting the arterioles and thereby greatly raising the arterial ten- sion; large doses exhaust and paralyze the heart. Its diuretic action is very complex, one of the active principles, digitalin, increases the arterial pressure by contracting the blood vessels of the body, while the large renal arteries are dilated by two of its active ])rinciples, digitoxin and digitalein. On this account digitalis is an ideal diuretic. ACTIONS^ USES AND DOSE 91 Uses. — It is used as a cardiac stimulant in full doses, followed by small ones ; used in heart and cardiac debility from any cause, irregularity of the heart due to debility ; used in dropsical conditions, combined with acetate or nitrate of potash; it is useful in congestion of organs, useful in the first stages of pneumonia and scarlatina; as a diuretic over the region of the kidneys this can be used two or three times daily; when internal remedies fail to increase the action of the kidneys this is very ef- fectual. Useful in palpitation of the heart due to over- exertion. Digitalis is occasionally employed with good results as a poultice of the leaves, applied over the loins to promote diuresis, or in local inflammation, to contract blood vessels. FERRUM REDUCTUM— REDUCED IRON Derivation. — Hydrogen gas is passed over freshly made and carefully washed ferric oxide in a hot and closed tube. Properties. — A very fine grayish-black, lustreless powder, w^ithout odor or taste ; permanent in dry air ; in- soluble in water or alcohol. Dose. — Horses, 1 to 2 dr.; cattle, 2 to 4 dr.; sheep and pigs, 20 to 30 gr. ; dogs, 1 to 5 gr. FERRI SULPHAS — FERROUS SULPHATE- COPPERAS— GREEN VITRIOL Derivation. — Iron wire is dissolved by boiling in dilute sulphuric acid. Properties. — Large, pale bluish-green, monoclinic prisms, without odor and having a saline styptic taste; efflorescent in dry air. On exposure to moist air the crystals rapidly absorb oxygen and become coated with brownish-yellow, basic ferric sulphate; soluble in water, insoluble in alcohol. Dose. — Same as reduced iron. FERRI SULPHAS EXSICCATUS— DRIED FERROUS SULPHATE Derivation. — Allow ferrous sulphate, 100 parts, 92 VETERINARY MEDICINES to effloresce at a temperature of 104° F., then heat on a water bath until the product weighs 65. Properties. — A grejash-white powder, slowly but completely soluble in water, without odor, and having a saline styptic taste. Dose. — Same as reduced iron. FERRI CARBONAS SACCHARATUS— SAC- CHARATED FERROUS CARBONATE Derivation. — Ferrous sulphate, 50; sodium bicar- bonate, 35; sugar and distilled water. Made by solu- tion, precipitation and washing. Properties. — Greenish-brown powder, without odor; sweetish taste; becomes oxidized on exposure to the air. Dose. — Horses, 2 to 4 dr.; cattle, Yo to 1 oz.; sheep and pigs, 1/4 to 1 dr.; dogs, 2 to 10 gr. SYRUPUS FERRI lODIDI— SYRUP OF FER- ROUS IODIDE Contains five per cent, by weight, of ferrous iodide. Properties. — Transparent, pale green liquid ; sweet, ferruginous taste. Dose. — Horses, lA to 1 oz.; cattle, 1 to 2 oz. ; sheep and pigs, 1 to 2 dr. ; dogs, 5 to 30 m. Given when you want the combined action of iron and iodine. Action. — Tonic, alterative, diuretic and emmena- gogue. FERRI CHLORIDUM— FERRIC CHLORIDE Ferric chloride should contain not less than 22 per cent of metallic iron in the form of chloride. Properties. — It is in orange-yellow, crystalline pieces, odorless or having a faint odor of hydrochloric acid and a strong styptic taste; deliquescent; soluble in water and alcohol; not used internally. Used almost exclusively in the form of tincture or liquor, and in reference to its effect and application I refer you to Tincture Ferri Chloridi and Liquor Ferri Chloridi ACTIONS^ USES AND DOSE 93 LIQUOR FERRI CHLORIDE— SOLUTION OF FERRI CHLORIDE Derivation. — Dissolve iron wire, 125, in hydro- chloric acid, 680, nitric acid and water to make 1000. Properties. — A reddish-brown liquid, having a faint odor of hydrochloric acid, an acid, strongly styptic taste. Dose. — Horses and cattle, 2 to 4 dr. ; sheep and pigs, 10 to 20 m. ; dogs, 2 to 10 m. All liquid preparations of iron should be well diluted with water or oil. TINCTURA FERRI CHLORIDI— TINCTURE OF FERRIC CHLORIDE Composed of ferric chloride, 350 parts; alcohol to make 1000. Dose. — Horses and cattle, 1 to 2 oz.; sheep and pigs, 20 to 30 m. ; dogs, 5 to 30 m. LIQUOR FERRI SUBSULPHATIS— SOLUTION OF FERRIC SUBSULPHATE— MONSEL'S SOLUTION A solution of sulphate of iron, sulphuric and nitric acids. Properties.— A dark reddish-brown liquid, odor- less or nearly so ; of an acid, strongly styptic taste ; mis- cible in water and alcohol. Dose. — Horses and cattle, 2 to 4 dr.; sheep and pigs, 10 to 20 m.; dogs, 2 to 10 m. This is used almost entirely for external use as an astringent and styptic. There are 36 official preparations of iron and a num- ber of unofficial preparations, quite a few of which are impracticable for use in veterinaiy medicine, conse- quently we have considered only those which are prac-^ ticable for use. Some are more irritating than others and some have special actions due to other drugs com- bined with the iron. GENERAL ACTION OF IRON AND ITS SALTS Iron is not a foreign substance to the organism. It is constantly present in the blood, gastric juice, lymph, bile, pigment of the eye and traces of it in the milk and 94 VETERINARY MEDICINES urine. In man there is 1 part of iron to 230 red blood corpuscles, and in cattle 1 to 194 red globules. That it performs a very important part is shown in the rapid construction of red globules when iron is administered in anaemia. Without it liaematin is not formed and red globules diminish in number. By its medicinal use we furnish to the blood a material which it needs. The action of iron is not limited merely to the construction of red blood. It also promotes the appetite and invigo- rates the digestion when there is no intolerance to its presence in the stomach. By increasing the disposition for food and the ability to dispose of it, iron acts as a stomachic, consequently w^hen given in the healthy state or when administered for too long a period during dis- ease the gastric glands become exhausted by over-stimu- lation; then it is said that iron disagrees. Being a re- storative its use is contra-indicated in a condition of ple- thora (fullness of the blood vessels). In large doses the soluble preparations of iron give rise to nausea and vomiting, some of them possessing more or less toxic ac- tivity. The iodide chloride and sulphate are the most active. Large doses will produce gangrene of the stomach and intestines. Certain salts of iron, as the sulphates, nitrates and chlorides, possess a high degree of astringency, hence they produce constipation when taken internally. When brought into contact with blood they coagulate it, forming a tough brownish magma, and as the albuminous elements of the tissues are also solidified they are powerful haemostatics. Iron is eliminated chiefly by the intestinal route, partly by the liver into the bile, thence into the intestines, some by the kidneys also. The tincture of the chloride being espe- cially diuretic. Iron is a haematinic, stomachic, styptic, astringent or haemostatic. The tincture chloride in addition is diu- retic. The sulphate is in addition vermicide. The iodide is alterative and resolvent as well as tonic. A medicine used in combination with iron may modify or enhance its action. Externally iron salts contract tissue by co- ACTIONS^ USES AND DOSE 95 agulating albumen when applied to raw surfaces or mu- cous membranes, and through this means by compress- ing the blood vessels from without and plugging them from within with clotted blood, arrest hemorrhage. The astringent salts may also induce some contraction of the vessels besides. Iron in the form of liquor ferri chloridi or liquor ferri subsulphatis is the most powerful of the metallic hemostatic agents we possess. Uses Internally. — The saccharated carbonate is staple, non-irritating to the stomach, and especially suited to dogs. It has the same uses as the sulphate. It is also used for the other animals when the stomach is weak. Sulphate of iron is used locally as an astringent and internally as a haematinic and tonic in anaemia. It im- proves the appetite and abates exhausting discharges, as in nasal gleet and leucorrhoea. In atonic torpidity of bowels it is prescribed with aloes; also in the same way for intestinal worms. Conjoined with iodine it is the best prescription for diabetes insipidus. It is also prescribed with good results in the first stages of liver rot in sheep. Chorea and epilepsy when with anaemia are benefited by iron. Combined iron and arsenic for chorea. Septicaemia, pyaemia and all forms of blood poisoning, as purpura, haemorrhagica, scarlatina, etc., with quinine. The tincture chloride is prescribed in blood poisoning. In red water of cattle, after bowels are freely opened. In convalescence from debilitating diseases it is a valuable tonic combined with other med- icines as nux vomica, quinine, etc. Such diseases as in- fluenza, chest diseases and chronic catarrh should be fol- lowed with iron and other tonics. Iodide of iron is used when an alterative as well as a tonic action is desired. It is given to promote the ab- sorption of glandular enlargements in young and weakly animals, and in swelling of the joints. It is useful in polyuria or diabetes insipidus, also nasal gleet. Tincture chloride of iron acts as a haematinic, tonic, antiseptic, astringent, styptic, diuretic and local irritant 96 VETERINAHY MEDICINES or caustic. It is serviceable in most cases in which the sulphate is recommended. It is used in atonic dyspepsia and for the removal of intestinal worms, in relaxed and sore throat. Tincture Chloride of iron is also used in anaemia combined with arsenic or quinine, and in blood poison- ing combined with quinine. It also promotes absorp- tion of inflammatory material when associated with de- bility and anaemia. It is the most serviceable prepara- tion of iron for influenza, purpura and scarlatina, as it has a tonic effect on both the blood and arterioles. In these cases it is prescribed with turpentine, quinine and oil. It is used in rheumatism in weakly patients alter- nated with salol, salicylic acid or salicylate of soda. Also used as an astringent and stimulant for the genito- urinary mucous membrane. The tincture being ex- creted by the kidneys, is preferred to watery solution. It is particularly suited for distemper and rheumatic lameness in weakly dogs. Uses. — Externally: Liquor ferri chloridi and liq- uor ferri subsulphatis are sometimes used to stop bleed- ing from wounds or natural cavities of the body. They may be injected, aj^plied by swab, or on absorbent ma- terial, which is packed into the wound or cavity. As a local application in phalangitis, we use one part of the solution of ferric chloride with four parts of glycerine. In the same strength, diluted with water, the chloride may be injected into the uterus to stop hemorrhage. Again, a solution in the strength of two drachms to the pint of water, is employed as an enema to destroy ascarides. The objection to these solutions of iron is that they form heavy, nasty, tenacious clots when em- ployed to arrest hemorrhage, and the clots are apt to decompose and favor sepsis. Therefore they should not be used if other means, as ligature, pressure, heat or cold can be utilized. Iron is regarded as a s])ecific for erysipelas. It is given both internally and externally. Administration of Iron. — The fluid preparations should be freely diluted; the solid preparations should ACTIONS^ USES AND DOSE 97 be combined with protectives or inert remedies, either in powder or capsule foiTn, or with stomachics as gentian root. Iron causes less gastric irritation and enters the blood more readily if given with or immediately after meals. In anaemia it should be given in increased doses. Overcome constipation by giving when necessary or combining iron with laxatives as linseed oil. GAMBIR— CATECHU An extract prepared from the leaves and twigs of Ourouparia Gambir (Hunter), Ballon (Fam. Rubia- ceae) . U. S. "An extract of the leaves and young shoots of the Uncaria Gembier, Roxb." Habitat. — Africa and Southern Asia. Description. — Irregular masses or cubes; reddish- brown, pale brownish-gray or light brown ; fracture dull- earthy ; friable, crystalline ; inodorous, bitterish, very as- tringent, with a sweetish after-taste; free from starch. Not less than 70 per cent should be soluble in alcohol. Constituents. — Catechutannic acid (about 45 per cent) is the active principle; it is converted into the isomeric inactive catchnic acid, or catchin, by the saliva and by boiling, a red color being developed. There is also pyrocatechin or catechol. Incompatibles. — Alkalies, metallic salts and gela- tine. Dose. — Horses, l/o to 1 oz. ; cattle, 1 to 2 oz. ; sheep and pigs, 1 to 2 dr. ; dogs, 5 to 30 gr. PREPARATIONS TINCTURA GAMBIR COMPOSITA— COM- POUND TINCTURE OF GAMBIR Composed of gambir, 50; cinnamon, 25; alcohol to make 1000. Dose. — Horses, l/^ to 2 oz. ; cattle, 1 to 3 oz. ; sheep and pigs, % to 1 oz. ; calves and foals, l/o to 1 oz. ; lambs, 10 to 30 m.; dogs, 1/^ to 1 dr. The above doses can be considerably increased and are good in cases of diarr- hoea of small and young animals. Action and Uses. — ^Gambir is administered to all 98 VETERINARY MEDICINES classes of domestic animals for the arrest of chronic catarral discharges and haemorrhage, especially from the alimentary canal. The insoluble catechnic acid beneficially exerts its astringency on the relaxed, over- secreting surfaces alike of small and large intestines. In chronic diarrhoea and in dysentery it is combined with aromatics to allay flatulence; with opium to relieve irritability and spasm; with alkalies, magnesia, or chalk to counteract acidity. If there is much mucus in the fecal discharges, show- ing a catarrhal state of the intestinal mucous membrane, it is advisable to give oil, salts or calomel before check- ing up the bowels with an astringent. GENTIANA— GENTIAN Gentian is obtained from the root Gentiana lutae. Habitat. — Mountainous parts of Southern and Central Europe. Properties. — ^Odor strong, characteristic; taste slightly sweetish, strongly and persistently bitter. The pow^der is free from starch grains and sclerenchymatic tissues. Dose. — Horses, l/o to 1 oz. ; cattle, 1 to 2 oz. ; sheep and pigs, 1 to 2 dr. ; dogs, 5 to 30 gr. PREPARATIONS EXTRACTUM GENTIANAE— EXTRACT OF GENTIAN Made by maceration and percolation with water and evaporated. Dose. — Horses, 30 gr. to 1 dr.; cattle, 1 to 2 dr.; sheep and pigs, 20 to 40 gr. ; dogs, 1 to 3 gr. FLUIDEXTRACTUM OF GENTIANAE— FLUIDEXTRACT OF GENTIAN Made by maceration and percolation with dilute al- cohol and evaporated, so that 1 c. c. equals 1 gm. of the crude drug. Dose. — Horses, 1/4 to 1 oz. ; cattle, 1 to 2 oz. ; sheep and pigs, 1 to 2 dr. ; dogs, 5 to 30 m. ACTIONS^ USES AND DOSE 99 TINCTURA GENTIANAE COMPOSITA— COMPOUND TINCTURE OF GENTIAN Composed of gentian, 100 parts; bitter orange peel, 40 parts; eardamon, 10 parts; made by maceration and percolation with alcohol and water. Dose. — Horses and cattle, 1 to 4 oz. ; sheep and pigs, 2 dr. to 1 oz. ; dogs, % to 1 dr. Action and Uses. — Gentian is a pure bitter, and is prescribed as a stomachic and tonic for all classes of ani- mals. Gentian improves the appetite and general tone. In atonic indigestion it is particularly useful amongst young animals, and in such cases is often conjoined with ginger and sodium bicarbonate. In relaxed and irri- table states of the bowels and where intestinal worms are suspected, after administeration of a laxative, gen- tian and dilute hydrochloric acid are of service. For horses suffering from simple catarrh few combinations are more effectual than an ounce of powdered gentian, two drachms potassium nitrate with two ounces of mag- nesium sulphate, dissolved in a pint of linseed tea, re- peated morning and night. Where more general tonic effects are sought, iron sulphate is alternated with the gentian and salines. Gentian proves an excellent stom- achic and stimulating tonic in influenza and other epi- zootics, helps convalescence from exhausting disorders and is a useful restorative for horses, overworked or suffering from loss of appetite or slight cold. The pow- dered gentian should be added to aloes when given in full cathartic doses to horses. HYDRARGYRI CHLORIDUM CORROSIVUM— CORROSIVE MERCURIC CHLORIDE— BI- CHLORIDE OF MERCURY— CORRO- SIVE SUBLIMATE Origin. — Bichloride of mercury is obtained as a sul- phate by heating a mixture of mercuric sulphate, so- dium chloride and a little black oxide of manganese. Properties. — Heavy, colorless masses; soluble one 100 VETERINARY MEDICINES in sixteen of water, one in three of alcohol ; hydrochloric acid or muriate of ammonia increases its solubility. Actions. — It is a corrosive, irritant poison; it is occasionally prescribed as an alterative, antiseptic and hepatic stimulant ; repeated doses or long continued pro- duce mercurialism. Externally, it is used as an anti- septic, astringent, caustic and parasiticide. It is a most powerful antiseptic when five parts of tartaric acid are added to one part of bichloride of mercury, which pre- vents the formation of insoluble albumenates of mer- cury in the tissues which checks any further action of the drug. Hydrochloric acid equal parts serves the same purpose. Uses. — For internal use milder preparations of mer- cury are preferred, and it is dangerous to use it for the production of mercurialism. For horses it has been pre- scribed in tetanus, chronic skin eruptions and swollen oedematous legs following repeated attacks of lymphan- gitis. Its chief use is that of an antiseptic externally for many surgical purposes, usually in the strength of one to five hundred, one to one thousand; for uterine injec- tions, one to five thousand or one in ten thousand. Seven and a half grains to a pint of water makes a one to one thousand solution. Seven and a half grains to a quart of water makes a one to two thousand solution. Fifteen grains to a pint of water makes a one to five hundred solution. Instruments, sponges, towels as well as the hands are disinfected by washing in a one thousandth solution. But it is injurious to most metal instruments and irritates and roughens the operator's hands. Best antiseptic for foul wounds, thrush, poll-evil, quittor and fistulous withers and nail punctures of the feet, a one in five hundred to one in one thousand solution to destroy the cryptogamic growths of ringworm, to kill lice and allay the itching of puritis and urticaria. Bichloride of mercury one part in one or two thousand parts of water is injected into the uterus in metritis, and in cases of abortion with good results. Contageous abortion is sat- isfactorily prevented by washing the aborted animal's ACTIONS^ USES AND DOSE 101 tail and external genital organs twice daily. All preg- nant cows should be treated in the same manner. Warm solutions are much more active than cold. A one in three to five thousand solutions are used in purulent conjunctivitis or wounds of the eye and lids, by frequently saturating absorbent cotton in the solution and holding over the eye by means of a clean cloth or bandage. Doses. — Horse, 1 to 5 gr.; cattle, 2 to 8 gr. ; sheep, 1/4 to 1 gr.; pigs, % to 1/4 gr. ; dogs, 1/60 to 1/10 gr. Not often given internally. It is the best of all the preparations of mercury for hypodermic use in syphilitic diseases. Antidotes. — The white of eggs, stomach pump for horses and emisis for dogs; wheat flower, milk, etc. HYDRARGYRI CHLORIDUM MITE — MILD MERCUROUS CHLORIDE— CALOMEL Origin. — Calomel is obtained by heating a mixture of mercurous sulphate and sodium chlorid. Calomel is found native in Spain and Carniola, but in too small quantities for commercial value. Properties. — Calomel is a dull-white heavy powder. It is inodorous, insoluble in water, alcohol or ether. Actions. — ^^Calomel is a cathartic, laxative, altera- tive, diuretic and vermifuge. Small doses are laxatives when repeated, large doses are cathartics, full doses irritate the stomach and produce emesis in man and dog. By stimulating the urea functions of the liver diuresis are produced, its action on the liver does not directly increase the secretion of bile, but removes it from the duodenum which reflexly increases its secretion. Re- peated doses produce mercurial poisoning. It is an alterative when combined with opium, laxative in small repeated doses and cathartic in larger doses. Uses. — Calomel is useful in gastric and intestinal catarrh, bilious diarrhoea, influenza lymphangitis and liver disorders w^hich show themselves by a yellowness of the visible mucous membranes. It is a useful ad- juvant cathartic conjoined with aloes or other cathartics. 102 YETERINARY MEDICINES As a laxative or cathartic for horses give aloes and calomel; cattle and sheep, magnesium and sodium sul- phate; for pigs, dogs and cats with jalap. Pure calomel is a specific for thrush. It is also useful in the treatment of moist skin and raw sores, mixed m equal parts with bismuth subnitrate it quickly dries the flesh and pre- vents itching. Doses. — As a laxative vermifuge and alterative horses and cattle take 20 to 40 grs.; sheep and pigs, 5 to 20 grs.; dogs and cats, 1/16 to 1 gr., given two or three times a day with equal weight of opium which prevents griping and a too rapid removal by the bowels. As a cathartic, calomel is best conjoined with other med- icines regulated by that of the medicine with which it is conjoined. A full cathartic for horses should consist of calomel 1 to l^/o drs. with aloes 4 to 6 drs.; cattle, II/2 to 2 drs. with magnesium sulphate or sodium sul- phate 1 to ll/) pounds; sheep, 5 to 30 grs. with magnes- ium sulphate 4 to 8 ounces ; pigs, 5 to 30 grs. with sodium bicarbonate I/2 to 1 ounce; dogs and cats l/g to 10 grs. with jalap 10 to 30 grains. HYDRARGYRI lODIDUM RUBRUM — RED IODIDE OF MERCURY— BINIODIDE OF MERCURY Origin.— Red iodide of mercuiy is obtained by dis- solving in water separately bichloride of mercury and potassium iodide, and pour both solutions slowly and stirring actively. Properties. — A scarlet-red, amarphous powder; odorless and tastless; permanent in air, insoluble in water; soluble in one hundred and twenty-five parts of alcohol. Actions. — Red iodide of mercuiy is a stimulant irritant, resolvent pustulant antiseptic and parasiticide. Uses. — Mixed with one to eight parts of lard it is a blister used to reduce bony enlargements or bone- tumors as in splints, bone spavin, ringbone, sidebone and actinontycosis ; it is also used with good results in reducing soft swellings, to arrest chronic inflammation ACTIONS^ USES AND DOSE 103 and promote absorption of inflammatory deposits, as seen in sprained tendons, curbs, enlarged joints, bursae, etc. It is frequently used as a counter-irritant in sore throat, chronic cough and roaring. Mixed with can- tharides the strength can be reduced as an irritant and less apt to permanently destroy the hair bulbs. It is used internally to arrest the growths of actinomycoses and scirrhous cord, but in those cases the benefits are derived from the potassium iodide which it contains, and I would recommend administering internally without the mercury. HYDRARGYRI OXIDUM FLAVUM— YELLOW MERCURIC OXIDE Origin. — Yellow mercuric oxide is obtained by the interaction of mercuric choride and sodium hy- droxide. Properties. — Mercuric oxide is of a yellow color, similar to that of the yolk of e^g, and is a completely amorphous powder; odorless, and having a somewhat metallic taste; permanent in the air, but turning dark on exposure to light ; insoluble in water or alcohol. Actions. — A stimulant caustic and anesthetic. Uses. — The official ointment of yellow mercuric oxide is prescribed as a stimulant and anesthetic in chronic inflammation and ulceration of the eye ( 4 gr. of yellow mercuric oxide to 1 oz. of vaseline). It is also employed on skin diseases, indolent ulcers, swollen glands and granulated wounds. HYDRASTIC— GOLDEN ZEAL The rhizome and roots of hydrastic canadensis Linne, yielding not less than 2.5 per cent of hydrastine. Habitat. — North America in woods west to Missouri and Arkansas. Properties. — Externally brownish-gray to yellow- brown; fracture short, wood wedges bright j^ellow, pith large, light yellow, the roots thin, brittle, with a thick yellow bark and a somewhat quadrangular wood; odor distinct; taste bitter. 104 VETERINARY MEDICINES Constituents. — Berberine, an alkaloid occurring in yellow crystals, hydrastine a colorless; crystalline al- kaloid, soluble in alcohol and ether; canadine occurring in white, acicular crystals. Dose. — Horses and cattle, 2 dr. to 1 oz.; sheep and pigs, 1 to 2 dr. ; dogs, 5 gr. to 1 dr. TREPARATIONS FLUIDEXTRACTUM HYDRASTIS— FLUID- EXTRACT OF HYDRASTIS Made by maceration and percolation with alcohol, glycerin and water and evaporation. Dose. — Horses and cattle, 3 drs. to 1 oz. ; sheep and pigs, 1 to 2 drs. ; dogs, 5 gr. to 1 dr. TINCTURA HYDRASTIS— TINCTURE OF HYDRASTIS Made by maceration and percolation of hydrastic, with diluted alcohol. Dose. — Horses and cattle, 1 to 2 oz. ; sheep and pigs, 2 to 4 drs.; dogs, % to 2 dr s. GLYCERITUM HYDRASTIS— GLYCERITE OF HYDRASTIS Made by maceration and percolation of hydrastis, 1000 parts add water to the percolate and evaporate. Add water to the residue, set aside 24 hours and filter; add enough water to the filtrate to make 500 parts; then add glycerin 500. Dose. — Horses and cattle, 2 drs. to 1 oz. ; sheep and pigs, 1 to 2 drs. ; dogs, 5 m. to 1 dr. HYDRASTINNAE HYDROCHLORIDUM— HYDRASTINE HYDROCHLORIDE The hydrochloride of an artificial alkaloid derived from hydrastine. Properties. — Light, j^ellow, amorphous granules, or a pale yellow erystalline powder; odorless and having a bitter, saline taste; deliquescent on exposure to damp air. Very soluble in cold and hot water and in alcohol. ACTIONS^ USES AND DOSE 105 Dose. — Horses and cattle, 2 to 6 grs.; sheep and pigs, Yo to II/2 grs.; dogs, 1/12 to 1/4 gi'- Action and Uses. — It acts like the simple bitters, promotes apj^etite and aids digestion, increases nutrition and stimulates secretion, especially of the intestines and liver. It is a stomach tonic, laxative, slightly diuretic and hepatic stimulant. It is also said to promote uterine constructions, and has some power as an antispasmodic. Externally it is an antiseptic and astringent. Useful in conjunctivitis, nasal gleet and leucorrhoea; one to two draclmis of the fluid extract or glycerite to the ounce of distilled water. One to two drachms of the fluidex- tract of hydrastis to one ounce of water is useful as a gargle for sore throat. Equal parts of fluidextract ot ergot and fluidextract of hydrastis is useful in ulceration of the uterus, vagina and in eversion of the rectum. Use- ful internally during convalescence after debilitating dis- eases, as in influenza and distemper, or whenever a bitter tonic is indicated, as in dyspepsia, chronic gastric catarrh, catarrhal jaundice, constipation from chronic nephritis and chronic cystitis. The glycerite a])plied locally for fissure of teats, cracked heels. Where there is a tendency to constipation it should be used as a bitter in preference to gentian, etc. lODUM— IODINE Derivation. — Iodine exists in certain marine vege- tables, particularly the f uci or common sea weeds, which have long been its most abundant natural source. Io- dine is also found in the animal kingdom, as in the sponge, oysters, cod liver oil and eggs, and in the min- eral kingdom, in sea water in small quantities, in cer- tain salt springs. It is obtained commercially from one of these sources. Properties. — Iodine is heavy, bluish-black color, dry and friable, rhombic plates, having a metallic luster, a distinctive odor, and a sharp and acrid taste. Iodine imparts a deep brown, evanescent stain to the skin, and slowly destroys vegetable colors. Soluble in about 5000 parts of water and in 10 parts of alcohol 106 VETERINARY MEDICINES at 77° F., freely soluble in ether, chloroform or carbon disulphide; its solution in alcohol or in an aqueous solu- tion of potassium iodide has a reddish color; its solution in chloroform or carbon disulphide has a violet color. Actions. — Iodine internally is an antiseptic, alter- ative, resolvent and irritant. Full doses persisted will produce a state of debility and emaciation termed iodism. Externally it is applied as an antiseptic, disinfectant, parasitide, deodorant, stimulant, disquamatic, absorbent and counter-irritant. Iodine is one of the best anti- septics for surgical purposes. The tincture iodine es- pecially kills all disease producing bacteria in one min- ute, whereas it takes a one in one thousandth solution of bichloride of merciu*y more than half an hour to de- stroy the same micro-organisms. The tincture of iodine also possesses unusual penetrating power on the dry skin, finding its way into the hair follicles and cutaneous glands. Iodine must not be applied to the wetted skin because the wetting causes the skin cells to swell and thus prevent the iodine from penetrating into the seba- ceous and sudoriparous glands, the very action upon which the special germicidal action depends. Uses. — Iodine is of most value applied externally, or locally. In sterilizing the skin for an emergency opera- tion the hair should be cii])ped and shaved dry and the tincture of iodine applied without washing the skin. For other operations the skin may be scrubbed with soap and shaved and dried before applying the tincture. The tincture should always dry on the skin before the operation is begim. The method used in human surgery for sterilizing the skin, and reconmiended by leading surgeons, con- sists in first of cleansing the skin w ith gasoline to remove the grease and then applying the tincture of iodine in full or half strength. Tincture of iodine applied is of some value in the treatment of periostitis with osseous deposits, as splints, bone-spavin, ringbone, sidebones, etc. It is used for en- largements of glands as goiter in dog. ACTIONS^ USES AND DOSE 107 LINUM— LINSEED— FLAXSEED Ground linseed (linseed meal or flaxseed meal) should be recently prepared and free from unpleasant or rancid odor. It is a grayish-yellow powder eontain- ing brownish fragments. Action and Uses. — It is nutrient, tonic, laxative, emollient and demulcent. Linseed meal and the cake are valuable foodstuffs in small quantities. It is two and one-half times as fattening as starch or sugar. It causes the hair of an animal to become slick and glossy and induces shedding in the spring, but is very heating in summer. Linseed gruel is a food, being palatable and easily digested, for horses, cattle and sheep, not only good in health, but in debilitating diseases, also in chronic skin diseases. It acts in such cases both as food and medicine. In febrile diseases horses will often sip or drink cold linseed tea (linseed meal two ounces to one pint of water) when they will not touch anything else. When a patient is exhausted the linseed tea is given with milk, eggs and whisky. Horses that are poor feeders, having harsh scurv}^ skins, or being affected w4th roar- ing, thick wind or heaves, are usually much benefited with linseed in some form. A mucilaginous demulcent in the proportion of about one to two ounces to a pint of warm water, is useful in irritable conditions of the throat, alimentary canal, kidneys and bladder. For linseed poultices, take the best grade of linseed meal, pour hot water over it until it becomes pasty. Charcoal and antiseptics are often mixed with it. When used as a poultice on the foot in nail pricks, always put on a poultice that will cover the whole foot. OLEUM LINI— LINSEED OIL— OIL OF FLAXSEED A fixed oil expressed from flaxseed without the use of heat. Properties.— A yellowish or yellow, oily liquid, hav- ing a slight, peculiar odor and bland taste. Soluble in 108 ^"ETERIXARY MEDICINES about ten parts of absolute alcohol and in all proportions in ether, chloroform, benzine or oil of turpentine. Linseed oil for medicine should always be used raw. Dose. — Horses, 1 to 2 pints; cattle, 2 to 4 pints; sheep and pigs, 5 to 10 ozs.; dogs, lA to 3 ozs.; cats, % to 1 dr. Action and Uses. — Linseed oil cannot be used as a diet on account of its being too laxative ; it is laxative in small doses, but in large doses produces copious dis- charges of faeces, having a distinct linseed oil smell. The oil is also emollient, soothing and softening to in- flamed and indurated surfaces. As a laxative it usual- ly produces tolerably full and softened evacuations, without nausea, griping or superpurgation and with de- cided odor of oil. It is the best physic to administer to pregnant animals and in irritable conditions of the bowels ; also in cases of influenza, purpura and other de- bilitating diseases, where the usual purgatives would be too severe, irritating and exhausting. It is also used as an enema; two to four ounces of the oil or meal given daily in mash often suffices to maintain the bowels in a relaxed condition throughout febrile attacks, where there is a tendency to constipation. An ounce or two of oil given daih" often relieves broken wind in horses. For burns and scalds the well known carron oil, com- posed of equal parts of linseed oil and lime water, can- not be surpassed. This oil is also used as a vehicle for acrid medicines and to act as a protective to the alimen- tary tract in poisoning of corrosive medicines, also to sweep them out. Carron oil in two to four ounce doses two to three times daily will often relieve "heaves" in horses. Linseed oil is frequently given to ruminants, al- though Epsom salts is generally the best purge for them. It is indicated for these animals when a milder operation than that obtained by a full dose of salts is required, and for its demulcent action in irritable states of the digestive organs. ACTIONS, USES AND DOSE 109 MAGNESII SULPHAS— MAGNESIUM SUL- PHATE—EPSOM SALTS Derivation. — Magnesium sulphate is a constituent of sea water and of some saline springs. It also occurs native, either crystallized in slender, prismatic, adhering crystals, or as an efflorescence on certain rocks and soils which contain magnesia and a sulphate or sulphide. In the United States it is found in the great caves so numer- ous to the west of the Alleghany Mountains. Properties. — Small, colorless, rhombic prisms, or acicular crystals, without color and having a cooling, saline and bitter taste; slowly efflorescent in dry air; .85 part of water; insoluble in alcohol. Actions. — Magnesium sulphate is a hydragogue and cholagogue cathartic; alterative and febrifuge and is also feebly diuretic and diaphoretic. As a cathartic it resembles common and glauber salts, and is more ac- tive than potassium bitartrate or sodium phosphate. When magnesium sulphate is administered it causes outpouring of secretion from the walls of the small intestines, most quickly and abundantly when the bowels have been partially emptied by several hours' fasting. Neither pancreatic fluid nor bile is materially increased. But magnesium sulphate has a low diffusing power. It is slowly absorbed, and moreover, retards diffusion and absorption of fluid present in the bowels. In this twofold action by increased secretion and re- tarded absorption the fluid contents of the bowels are in- creased, producing more or less mechanical distension and provoking, like other salines, slight peristalsis. The retarded removal of accumulating liquid is apt to pro- duce the formation of gases in the bowels, which is re- lieved by conjoining carminatives, as ginger or capsicum, while effectual removal of the intestinal fluids is attained by using with magnesium sulphate aloes, calomel or oil. It acts in from twelve to sixteen hours; in small doses it stimulates the secretions of the kidneys and skin. In febrile diseases it is used in small repeated doses. It is valuable in treating animals suffering from reflex skin 110 VETERINARY MEDICINES irritation, combined with large doses of bicarbonate of sodium, generally gives relief, especially in urtecaria of the horse. It is quite commonly used as a cathartic for horses, but most often for cattle and sheep. Doses. — When repeated two or three times as a lax- ative and alterative horses take 2 to 4 ounces, cattle 3 to 6 ounces, sheep and pigs, 1 to 2 drachms. As a cathartic cattle take 1 to 2 pounds, calves two to three months old 3 to 4 ounces, sheep 4 to 6 ounces, dogs 1 to 4 drachms. Aloes is a much better cathartic for horses, and castor or linseed oil acts much better as a cathartic in pigs. NAPHTHALENUM— NAPHTHALENE A by-product of gas manufacture. Properties. — Colorless, shining rhombic crystals of an aromatic acrid taste, insoluble in water but soluble in alcohol, ether and oils. Dose. — Horses, 1 to 3 dr.; cattle, 2 to 4 dr.; sheep and pigs, 5 to 15 gr. ; dogs, 1 to 10 gr. These doses can be doubled in severe cases of intestinal flatulence. Actions and Uses. — A true intestinal antiseptic and antiferment, is also expectorant, antiseptic and parasi- ticide. Used in intestinal flatulence, dissolved in tinct- ure capsicum; in diarrhoea and dysentery, is of great value in these ailments, quickly allays foul odor of the evacuations of the bowels; large doses irritate the kid- neys and cause bloody urine which ceases upon with- holding the drug. When powdered on a wound as wire cuts, etc., will keep away flies and other insects, be- sides it is a powerful antiseptic and promotes the heal- ing of wounds. Used as an ointment it is very effective in parasitic skin diseases. NUX VOMICA— QUAKER BUTTON The dried ripe seeds of Strychnos nux vomica, yield- ing when assayed by the process given below, not less than 1.25 per cent of strychnine. Habitat. — The tree is a native of the East Indies, growing in Bengal, Malabar, on the Commandel Coast, ACTIONS^ USES AND DOSE 111 in Ceylon, in many islands of the Indian Archipelago, in Cochin-China and in other neighboring countries. Description. — ^Orbicular, nearly flat, sometimes ir- regularly bent, about three-quarters of an inch in diam- eter and two in thickness; externally grayish or green- ish-gray, the surface covered with short closely op- pressed, satiny hairs ; rounded or somewhat acute at the margin, with a slight ridge extending from the center of one side to the edge; internally whitish-gray, horny, very tough, the endosperm in two more or less regular concavo-convex halves, between which, at one end, lie the heart-shaped, palmately nerved cotyledons; inodorous; taste intensely and persistently bitter. Constituents. — Two alkaloids. 1. Strychnine, 0.2 — 0.6 per cent. 2. Brucine, 0.5 — ^1.0 per cent. Similar in action to strychnine, but weaker and slower. Both alkaloids exist in combination with igasuric acid. Brucine occurs in rectangular octohedral ciystals; it is soluble in alcohol, in 7 parts of chloroform, and pos- sesses a bitter taste. With sulphuric and nitric acids a beautiful blood-red color is developed. There are also : 4. Igasuric acid with which strychnine and brucine are combined. 5. Loganin, an inert glucoside occurr- ing in colorless prisms. Dose. — Of the ground seeds, horses and cattle, 1 to 2 dr.; sheep, 20 to 40 gr.; pigs, 10 to 20 gr.; dogs, 1 to 2 gr. PREPARATIONS EXTRACTUM NUCIS VOMICAE— EXTRACT OF NUX VOMICA Made by maceration with alcohol, water and acetic acid; percolation with alcohol and water and evapora- tion. Standardized to contain 5 per cent of strychnine. Dose. — Horses and cattle, 5 to 15 gr. ; sheep, 2 to 5 gr.; pigs, 1 to 2 gr.; dogs, !/§ to % gr. FLUIDEXTRACTUM NUCIS VOMICAE— FLUIDEXTRACT OF NUX VOMICA Made by digestion and percolation with alcohol and water and acetic acid. The alcohol is distilled off and 112 VETERINARY MEDICINES the solution evaporated. Alcohol and water are added so that the fluid extract shall contain one per cent of strychnine. Dose. — Horses and cattle, 1 to 2 dr.; sheep, 20 to 30 m. ; pigs, 10 to 20 m. ; dogs, 1 to 2 m. TINCTURA NUCIS VOMICAE— TINCTURE OF NUX VOMICA Made by solution of the extract of nux vomica, 20 in alcohol, and water to make 1000. Standardized to contain 0.1 per cent strychnine. STRYCHNINA— STRYCHNINE An alkaloid obtained from nux vomica, and also obtainable from other plants of the natural order Logan- iaceae. Derivation. — Nux vomica seeds are powdered and strychnine is extracted with water acidulated with hy- drochloric acid. The solution is concentrated and strychnine ])recipitated with lime. It is then redissolved in boiling alcohol and the ciystals are deposited upon concentration of the solution. Properties. — Colorless, transparent, prismatic crys- tals, or a white crystalline powder; odorless, having an intensely bitter taste, preceptible even in solutions of 1 in 700,000. Strychnine should be tasted with extreme eaution. Permanent in the air, soluble in water, alco- hol, ether, chloroform, ])enzine and anyl alcohol. Dose. — Same as strychnine sulphate. STRYCHNINAE SULPHAS— STRYCHNINE SULPHATE ^lade by the action of sulphuric acid on strychnine. Properties. — Colorless or white, prismatic crystals, odorless and having an intensely bitter taste. Efflores- cent in dry air. Soluble in water and alcohol. Almost soluble in ether. Dose. — Horses, i/o to ll/4 gr. ; cattle, 1 to 3 gr.; sheep, 1/4 to l/o gr.; dogs, 1/120 to 1/40 gr. The small doses are to be used when strychnine is given subcutan- eouslv. ACTIONS^ USES AND DOSE 113 Actions. — Nerve tonic, stomach tonic, stimulates respiration, secretion, appetite and digestion ; it increases peristalsis, stimulates both the motor and inliibitory ap- paratus of the heart, and raises arterial tension by stimu- lating the vaso-motor centers, thus contracting the arter- ioles, though full doses relax the arterioles and thus lower blood pressure. Strychnine exalts all functions of the spinal cord, reflex, motor, vaso-motor and sensory, the latter being the least affected ; it does not affect the brain directly. Toxicology. — Large doses cause trembling and twitching of the voluntarj'^ and involuntary muscles with violent clonic spasms, lasting one or two minutes, grad- ually getting more frequent and severe in form involving the glottis, diaphragm and other muscles of respira- tion; causes death usually from asphyxia. Very large doses may paralyze the cord as from a blow, and cause almost instant death. Uses. — Nux vomica or strychnine is indicated in any condition in which there is a paralysis or depressed state of the nerves or nei'vous system; atonic dyspepsia, broken wind, relaxed condition of the bowels due to lack of tone, in small doses. In weak condition of the heart give with small doses of digitalis; it stimulates sexual organs. Give it in convalescence from debilitating diseases, also as an aid to recovery during their progress; in collapse and for narcotic poisoning strychnine hypodermically in para- lysis, whether of limbs, intestines or bladder. In diarrhoea, due to lack of tone of muscular coat of the bowels combined with astringents; for anaemia, stiychnine combined with iron and quinine; nervous coughs use strychnine with sedatives; also in incon- tinuence of urine and chorea, in dogs after distemper. Antidote for Strychnine Poisoning. — Tannic acid or vegetables containing it should be freely admin- istered, for the tannate of strychnine which is formed is very insoluble; an emetic or the stomach pump must be used promptly. The tetanic spasms are best controlled 114 VETERINAUY MEDICINES by chloral hydrate or very large doses of potassium bromide (2 dr. to Y2 o^- foi' man) or -l to 8 ounces for the horse as antidote for strychnine poisoning. Inhala- tions of ether are also recommended. Chloral hydrate may be used per rectum or intravenously. Inhalations of amyl nitrate are also of value. The administration of melted lard seems to exert peculiar antidotal proper- ties to strychnine poisoning. As an emetic for dogs apomorphinae hydrochloras 1/20 to 1/5 grain, given hypodermically, is the best and may have to be pushed as emetics act tardily in poisoning by this drug. OLEUM MORRHUAE— COD LIVER OIL A fixed oil obtained from the fresh livers of cod fish. Habitat. — North Atlantic Ocean. Properties. — A pale yellow, thin, oily liquid, hav- ing a peculiar slightly fishy but not rancid odor, and a bland, slightly fishy taste. Cod liver oil is often adul- terated with the oil of other fish. Brown oils are not desirable therapeutically. Dose. — Horses, 2 oz. ; cattle, 2 to 4 oz. ; sheep, 1 oz. ; pigs, l/> to 1 oz. ; dogs, 1 to 4 dr. ; cats, l/> to 1 dr. Action and LTses. — Nutrient, tonic and alterative; on account of its biliary constituents is easily emulsified and digested. It is indicated in all cases of malnutrit- ions and where the digestive organs are weak; also in animals recovering from debilitating diseases, such as distemper and influenza. It is good in catarrh and bronchitis, as it appears to furnish suitable material for repair of the inflamed mucous membranes. Like other oils it relieves broken wind and is given to man in consum])tion. It is particularly used for the smaller animals. It is given to dogs and cats during distemper, also in eczema, epilepsy, chorea, rickets and chronic rheu- matism. OLEUM OLIVAE— OLIVE OIL— SWEET OIL A fixed oil expressed from the ripe fruit of Olea europoea Linne. It should be kept in well stoppered bottles in a cool place. ACTIONS, USES AND DOSE 115 Habitat. — Southern Europe and Asia. Properties. — A pale yellow, or light greenish-yel- low, oily liquid, having a slightly peculiar odor and a nutty oleaginous taste, with a faintly arcid after-taste. Very sparingly soluble in alcohol, but readily soluble in ether and chloroform. Dose. — As a laxative — Horses and cattle, 1 to 2 pt. ; dogs, 2 to 4 oz. OLEUM GOSSYPII SEM I NIS— COTTON SEED OIL A fixed oil expressed from the seeds of Gossypium herbaceum Linne and of other sj^ecies of Gossypium and subsequently purified. Habitat. — Southern United States and other semi- tropical countries; cultivated. Properties. — A pale yellow, oily liquid, without odor and having a bland nut-like taste. Very sparingly soluble in alcohol, but readily soluble in ether, chloro- form or carbon disulphide. Dose. — Same as olive oil. Action and Uses. — Both olive and cotton seed oil are laxative tonics, demulcents and emollients. Sweet oil, not used internally to any extent, but is used extern- ally for soothing and healing irritated wounds. It may be used in its pure state or be mixed with carbolic acid, 20 m. of the carbolic acid to 4 oz. of sweet oil. OLEUM RICINI— CASTOR OIL Derivation. — Castor oil is expressed from the seeds of a plant (Ricinus communis) which grows in the East Indies and Africa in the character of a tree and rises sometimes thirty or forty feet. It also grows in the temperate latitudes of North America and Europe. Properties. — Pure castor oil is a thick, viscid, color- less liquid, with little or no odor and a mild though some- what nauseous taste. Action and Uses. — Good castor oil is a mild and speedy cathartic, usually operating within four to five hours with, little griping or uneasiness, and evacuating 116 VETERINARY MEDICINES the contents of the bowels without much increasing the alvein secretions. Hence it is particularly applicable to constipation from collections of abnormally hard faeces, and to cases in which irritating substances have been swallowed or irritating substances have accumu- lated in the bowels. From its mildness it is also es- pecially adapted to diseases of the bowels, as colic, in- digestion, diarrhoea, dysentery and enteritis. It is also indicated in overloaded bowels in pregnancy combined with anodynes and antispasmodics to prevent griping. Castor oil in two or three ounce doses conjoined with gruel and five or six drops of oil of peppermint is suit- able for foals and calves affected with gastro-intestinal disorders. Castor oil is s])ecially applicable in canine practice, to evacuate the bowels, and in irritated condi- tions of the digestive tract, in ounce doses mixed with equal parts of glycerine and adding two or three drops of oil of wintergreen. Castor oil may be given to horses in sixteen ounce doses conjoined with oil of peppermint, twenty drops, or tincture opium, one ounce and fluidextract of bella- donna, one to two drachms, flour gi-uel, etc. Castor oil in one to two drachm doses is especially valuable for poultry. Castor oil is used with equal success in the treatment of gastro-intestional disorders of cattle, sheep and pigs. Dose. — Horses and cattle, 12 to 16 oz. ; sheep and pigs, 2 to 6 oz. ; dogs and cats, lA to 2 oz. ; poultry, 1/2 to 2 dr. OLEUM TEREBINTHINAE— OIL OF TUR- PENTINE Erroneously Called Spirits of Turpentine Dekivation. — A concrete oleo-resin from Pinus paulstris INIiller, and from other species of Pinus. The oil is distilled, usually by the use of steam, from the oleo- resin. Habitat. — Southern United States, from Virginia to the Gulf of Mexico. Properties. — A thm, colorless liquid, having a char- ACTIONS, USES AND DOSE 117 acteristic odor and taste. Soluble in three times its volume of alcohol; also soluble in an equal volume of glacial acetic acid. Dose. — Carminative — Horses and cattle, 1 to 2 oz.; sheep and pigs, 1 to 4 dr. ; dogs, 5 to 30 m. Best given in 8 to 10 times its bulk of cotton seed oil, linseed oil or milk. Anthelmintic — Horses and cattle, 2 to 4 oz.; sheep and pigs, I/2 to 1 oz. ; dogs, i/o to 4 dr. Diuretic — Horses and cattle, 2 to 4 dr. PREPARATIONS LINIMENTUM TERBINTHINAE — TURPEN- TINE LINIMENT Composed of resin cerate, 650 parts; oil of turpen- tine, 350 parts ; melt the resin cerate and add the oil of turpentine. OLEUM TEREBINTHINAE RECTIFICATUM— RECTIFIED OIL OF TURPENTINE Made by slaking oil of turpentine with an equal volume of Solution of Sodium Hydroxide, and distil- lation. Properties. — A thin, colorless liquid, having the same properties as oil of turpentine and should be the one used for internal use. DERIVATIVES OF TURPENTINE TEREBENUM— TEREBENE Made by the action of sulphuric acid on oil of tur- pentine and by distillation. Properties. — A colorless, or slightly yellowish, thin liquid, having a rather agreeable thyme-like odor, and an aromatic, somewhat terebinthinated taste. Only slightly soluble in water, but soluble in three times its volume of alcohol. Dose. — Horses and cattle, 2 to 4 dr.; dogs, 5 to 15 m. Dilute same as oil of turpentine. TERPINI HYDRAS— TERPIN HYDRATE The hydrate of the diatomic alcohol Terpin. Derivation. — Rectified oil of turpentine, alcohol 118 VETERINARY MEDICINES and nitric acid are mixed together in a shallow porce- lain dish, and after three or four days terpin hydrate crystallizes out. The crystals are collected, drained, dried on absorbent paper and purified by recrystalliza- tion in alcohol. Properties. — Colorless, crystals, odorless, having a somewhat bitter taste. Soluble in 200 parts of water, 10 parts of alcohol. Actions. — Externally — Oil of turpentine is rube- facient, irritant and counter-irritant; vesicant if rubbed in or confined, also a powerful antiseptic and disinfect- ant; is absorbed by the unbroken skin. Internally — Is diuretic, stimulant, carminative, anti- spasmodic, hemostatic and althelmintic; it is irritant, and large undiluted doses may cause gastro-enteritis and paralysis of nerve centers. Uses. — In colic, both spasmodic and flatulent; for worms, give full doses, septic fevers; gangrene of the lungs; catarrhal conditions, pneumonia and bronchitis; as a diuretic, but others not as irritant are better. For local gangrene remove the dead tissue and then apply the turpentine direct to the affected parts by means of absorbent cotton or cloth saturated with it ; the offensive odor is removed and sloughing arrested. For tape worm it is given with oleo-resin of aspidium, in oil. As an inhalation in pulmonary diseases one-half ounce is added to three quarts of boiling water. In two drachm doses every three hours, if frequently, aborts suppuration in parotiditis of horses. In purpura haem- orrhagica, turpentine is a valuable medicine as a vaso- motor stimulant and diuretic, given in two drachm doses every four hours with tincture chloride of iron and linseed oil. OLEUM TIGLII— CROTON OIL A fixed oil expressed from the seed of Croton Tig- lium Linne. Habitat. — Asia, India, Indian Archipelago and Philippine Islands. Properties. — A pale yellow or brownish-yellow, ACTIONS^ USES AND DOSE 119 somewhat viscid, and slightly fluorescent liquid, having a slight fatty odor, and a mild, oily afterwards acrid and burning taste (great caution is necessary in tast- ing). Specific gravity 0.935 to 0.950 at 25° C. '(77° F.). Constituents. — ^Crotonoleic acid is the purgative principal. A small amount is free in the oil but it is mostly formed within the bowels. It resembles acid of castor oil in its chemistry ; crotonol is a non-purgative body causing irritation of the skin; tiglinic acid and other volatile acids existing as glycerides and accoimting for the odor of croton oil ; it also contains free and com- bined fatty acids. Dose. — Horses, 15 to 30 m.; cattle, i/> to 1 dr.; sheep and pigs, 5 to 10 m.; dogs, l/o to 2 m. Actions. — It is a powerful irritant and pustulant, is a drastic hyragogue cathartic; full doses cause gastro- enteritis and much prostration; undiluted it seriously and deeply inflames the skin, causing severe blemishes and by absorption it may cause fever and superpurga- tion. The purgative action is probably due in part to direct irritation of the intestinal mucous membrane; in part to absorption and elimination of the purgative prin- ciple by the bowels. Uses. — ^^Cattle are the only animals for which it can be used with any degree of safety; it can be used for dogs and pigs if used with great caution. For horses and sheep it is too irritating and depressing; it is used in cattle as an active hydragogue purgative when they suf- fer from lodgment of fecal matter in the third stomach and other forms of constipation, and from torpidity of the bowels. Should not be used in debilitated, delicate or young animals. If an over-dose has been given com- bat with demulcents, opium and stimulants. It should not be used as a counter-irritant or applied to the skin in any form or for any purpose. Ci^oton oil (in a pint of linseed oil) is valuable in assisting the action of salts in obstinate constipation of cattle. It may be given to horses when a powerful derivative and purgative action 120 VETERINARY MEDICINES is indicated, as iii acute inflammation of the brain and spinal cord with calomel and aloes in a capsule. OPIUM Derivation. — The concrete, milky exudate obtained by incising the unripe capsules of Papaver somniferum Linne, and yielding in its normal, moist condition, not less than nine per cent of crystallized morphine when assayed by the official process. 0])ium is imported from Turkey, Asia Minor, Persia, India and Egypt. The Smyram, or Turkey opium, is the more common variety used in the United States. It occurs in irregular, glo- bular masses, covered with poppy leaves and capsules of a species of dock, weighing from one-half to one pound. Properties. — In irregular, flattened, more or less rounded masses of variable size, externally grayish- brown, covered with particles of poppy leaves and with occasional fruits of a species of Rumex; more or less 2)lastic when fresh, but becoming hard on kee])ing ; inter- nally dark brown, somewhat lustrous; odor strong, nar- cotic; taste bitter and characteristic. It yields its med- ical ])roperties to water, alcohol and dilute acids, form- ing dark brown solutions. Ether extracts its principles in part. Constituents. — There are about nineteen or twenty alkaloids derived from opium, Init only a few are of any importance so far as their medical value is concerned. Dose. — Of the crude opium — Horses, 1 to 2 dr.; cattle, 2 to 4 dr.; sheep, 10 to 30 gr. ; pigs, 5 to 10 gr. ; dogs, 1/2 to 2 gr. PREPARATIONS OPII PULVIS— POWDERED OPIUM This is opium dried at a temperature not exceeding 85° C. (185° F.) and powdered and should not contain less than 12 per cent nor more than 12l/> per cent mor- phine. Dose. — Horses, l/o to ll/o dr.; cattle, 1 to 3 dr.; sheep, 5 to 30 gr.; pigs, 5 to 15 gr.; dogs, 14 to 3 gr. ACTIONS^ USES AND DOSE 121 EXTRACTUM OPII— EXTRACT OF OPIUM Composed of powdered opium, 100 parts; distilled water, 1000 parts; sugar of milk, a sufficient quantity. Made by trituration, filtration and evaporation. As- sayed to contain 20 per cent of morphine. Dose. — Horses, l/o to 1 dr. ; cattle, 1 to 2 dr. ; sheep, 5 to 15 gr.; pigs, 3 to 10 gr.; dogs, 14 to 2 gr. PULVIS IPECACUANHAE ET OPII— POWDER OF IPECAC AND OPIUM— DOVER'S POWDER Composed of ipecac, 10 parts; powdered opium, 10 parts; sugar of milk, 80. The most diaphoretic and expectorant compound of opium. Dose. — Horses, I/2 to 1 oz.; dogs, 2 to 12 gr. TINCTURA IPECACUANHAE ET OPII— TINC- TURE OF IPECAC AND OPIUM— LIQUID DOVER'S POWDER Composed of tincture of deodorized opium 100, evaporated to 80, fluid extract of ipecac 10, diluted al- cohol sufficient quantity to make 100. Dose. — Plorses, i/o to 1 oz. ; dogs, 3 to 12 m. TINCTURA OPII— TINCTURE OF OPIUM Popularly Known as Laudanum Composed of granulated opium, 100 parts; alcohol, 400 parts; water, 400 parts; diluted alcohol to make 1000. Made by trituration, maceration with precipi- tated calcium phosphate and percolation. Assayed and standardized to contain between 1.2 and 1.25 gm. of morphine in 100 c. c. Dose. — Horses, 1 to 2 oz. ; cattle, 2 to 3 oz. ; sheep and pigs, 2 to 4 dr. ; dogs, 3 to 20 m. TINCTURA OPII CAMPHORATA— CAMPHO- RATED TINCTURE OF OPIUM Well Known as Paregoric Composed of powdered opium, 4 parts ; benzoic acid. 122 VETERINARY MEDICINES 4 parts; camphor, 4 parts; oil of anise, 4 parts; gtycerine, 40 parts; diluted alcohol to make 1000 parts. Made by maceration and filtration. Dose. — Dogs, 1 to 4 dr. ; puppies and cats, 2 to 10 m. OPIUM DEODORATUM— DEODORIZED OPIUM Composed of powdered opium, 500 parts; purified petroleum, q. s. JVIade by repeated maceration, agita- tion and percolation with purified petroleum benzine. The petroleum benzine removes narcotic and odorous principles, which cause nausea and disagreeable after- effects in opium. Contains 12 to 12.5 per cent of mor- phine. Dose. — Same as powdered opium. VINUM OPII— WINE OF OPIUM Composed of o])ium, cloves, cinnamon and sherry wine. Recommended for dogs suffering from diarr- hoea. Dose. — Same as the tincture of opium. MORPHINA— MORPHINE An alkaloid obtained from opium. Properties. — Colorless or white, shining prismatic crystals, or fine needles, or crystalline powder; odorless and having a bitter taste ; permanent in the air ; soluble in 3330 parts of water. The latter are preferable ow- ing to their greater solubility. MORPHINAE HYDROCHORIDUM— MOR- PHINE HYDROCHLORIDE INIorphine is stirred with hot distilled water, to which hydrochloric acid is gradually added. Morphine hydro- chlorate crystallizes out on cooling. Properties. — White silky, glistening needles or microcrystalline cubes, or a white, crystalline powder, odorless and having a bitter taste; permanent in the air. Soluble in water and alcohol; insoluble in ether and chloroform. ACTIONS^ USES AND DOSE 123 Dose. — Horses and cattle, 3 to 10 gr. ; sheep, 1/? to 2 gr. ; pigs, 1/10 to l/^ gr. ; clogs, !/§ to l/o gr. About one-half of these doses for hypodermic use. MORPHINAE ACETAS— MORPHINE ACETATE Morphine is dissolved in acetic acid and water and the solution evaporated and crystallized. Properties. — A white or faintly yellowish-white, crystalline, amorphous powder, having a faint, acetous odor and bitter taste. Soluble in water and alcohol. Dose. — Same as morphine hydrochloride. MORPHINAE SULPHAS— MORPHINE SULPHATE Morphine is stirred into boiling distilled water; di- luted sulphuric acid is added until neutralization is at- tained, and the sulphate crystallizes out on cooling. Properties. — White, featheiy, acicular, silky cryst- als, or in cubical masses, odorless, permanent in the air, and having a bitter taste. Soluble in water and alcohol, insoluble in chloroform and ether. CODEINA— CODEINE An alkaloid obtained from opium by evaporation of the ammonical liquid, after the precipitation of mor- phine. The residue is added to water, precipitated by potassium hydrate, and redissolved in ether, from which codeine crystallizes out on evaporation. Properties. — White or nearly translucent, orthor- hobic prisms, octahedral crystals, or a ciystalline pow- der; odorless and having a faintly bitter taste; slightly efflorescent in warm air. Soluble in water, alcohol, ether and chloroform. Dose.— Dogs, 14 to li/o gr. HEROIN— DIACETYLMORPHINE This diiig is a derivative of morphine, and is now used extensively in human medicine as a substitute for morphine and codeine. 124 VETERINARY MEDICINES Properties. — White or colorless, crystalline pow- der, possessing a slightly bitter taste. Insoluble in wa- ter, but readily soluble in weak acidous solutions. Heroin hydrochloride is a white, crystalline powder, odorless, soluble in 2 parts of water. Heroin surpasses both morphine and codeine therapeutically in many ways. It increases markedly the inspiratory and ex- 2:)irator)^ force, while lessening the number of the res- pii-atory movements and exerts a special sedative influ- ence on the respiratory mucous membranes. The drug acts also as a general motor depressant, hyj^notic and analgesic, but is not comparable to morphine in these respects. Heroin is about five times more toxic for dogs than morphine. Heroin is particularly valuable in the treatment of all varieties of coughs affecting the dog. The after-effects of small doses are not as nauseating or constipating as morphine. Heroin can be given in powder, pill or tablet, the Heroin hydrochloride in solution, every three or four hours. Dose of Either. — Horses, l^ to 2 gr.; dogs, 1/24 to 1/6 gr. Actions. — Opium is analgesic, hypnotic, diaphor- etic, antispasmodic, narcotic; also cardiac and respira- tory depressant after primary brief stimulation. Medical Doses. — It dries all secretions except the mammae and skin. The latter being increased, it pro- duces diyness of the mouth and throat, arrests gastric secretions, retards digestion and causes anorexia (loss of appetite) ; it stimulates the brain by increasing the blood supply; in man it stimulates the mantal activity, while in animals it stimulates motor activity; it does not affect the conductivity of nerves, but it prevents the consciousness to pain by paralyzing the nerve centers; the action of the heart is increased and arterial tension is raised; the pupil slightly contracted; the mind at first stimulated, becomes calm, sleep follows, disturbed by dreams and headache; constipation and some depres- sion follows. ACTIONS, USES AND DOSE 125 Large Doses. — Arrest digestion, cause nausea and vomiting, greatly increase perspiration, prevents the conductivity of nerves, depresses the heart and circula- tion, impairing oxidation and lowering temperature; it contracts the pupil by stimulating the motor nerve of the eye (in horses it dilates the pupil) and causes intense puritis (itching), especially of the nose, often retention of the urine and soon profound sleep; in some cases coma or delirium, leaving as after-effects nausea, de- pression, constipation, vertigo, anorexia, nasal puritis and fetid pathological secretions. Morphine and codeine comjMred with the action of ojnum. Morphine is inore anodyne and hypnotic; it causes more intense puritis (itching) is less stimulant, less convulsant, less constipating and diaphoretic. Codeine is a motor paralyzant; it exalts the spinal cord more than morphine and affects the cerebrum less, producing muscular tremors in excess of sedation; it reduces the urinaiy sugar in diabetes and has a selective sedative influence on the pneumogastric nerve, thus a better sedative in cough. Indications for the use of Opium : 1. To relieve pain and spasm. 2. To produce sleep. 3. To abort inflammation. 4. To check excessive secretions. 5. To act as a stimulant and supporting agent. 6. As a sudorific (not so active in animals as in man). Sulphuric ether administered with opium prevents its drying up effects as well as the nauseating and de- pressing effects. Used for pain from any cause except acute inflammation of the brain. Used in low fevers to support the system when suflicient food cannot be taken, also in irritation of bronchi, bladder, stomach and bowels, as well as the uterus. In inflammation of the serous membranes which line the abdominal walls (peritonitis) opium can be used 126 VETERINARY MEDICINES freely; combined or alternated with aconite and diu- retics is very highly recommended and tends to prevent dropsical conditions. In inflammation of the serous membrane investing lungs and lining the thorax I (pleurisy) opium and aco- nite will often arrest its development if administered in its first stages. In diarrhoea and dysentery opium is said to be one of the best medicines we have, it can be combined with acetate of lead, prepared chalk, etc. In inflammation of the bowels, owing to its effect in binding up the bowels, belladonna alternated with aconite is preferred to o]:)ium. In colds administer Dover's Powder, or opium, am- monium carbonate, quinine sulphate and camphor. In spasmodic colic do not use opium, but give hypo- dermically three to four grains of morphine sulphate ; it is non-constipating; also use anodynes, such as cannabis indica, hyoscyamus, etc., are preferable. In gastritis, opium conjoined with bismuth sub. ni- trate and hydrastis. In eversion of the rectum or uterus, administer mor- phine hypodermically to prevent straining. In muscular spasms opium is very effective. In cerebro-spinal meningitis opium should be ad- ministered early, before exudation has set in, with bella- donna and ergot, alternated with aconite. In diabetes millitus, codeine is said to be best, as it lessens the amount of sugar in the urine and should be administered by the mouth; if given hypodermically it exerts no influence on the sugar. In catarrhal diseases administer opium to lessen the discharge. In Thumps administer full doses of morphine sub- cutaneously. In inflammation of the eyes morphine sulphate is very efficient combined with zinc sul])hate and distilled water. Toxic Doses. — Produce cold clammy sweat, very ACTIONS, USES AND DOSE 127 slow heart, diminished quantity of urine, abolished re- ilexes, coma, the pupil minutely contracted (exeept in the horse) but dilated as the end approaches and death by suspension of respiration, due to direct action of the poison on the respiratory centers in the medulla. In case of poisoning. Emetics, stomach pump, permanganate of potassium, grain for grain of mor- phine, or 10 to 15 grains dissolved in 8 ounces of water, given by the mouth for large dogs, and 1 to 2 drachms of permanganate of potassium in 2 or 3 pints of water for horses. Artificial respiration, striking the body, keep patient moving, empty bladder to prevent absorp- tion. APOMORPHINE HYDROCHLORIDUM— APOMORPHINE HYDROCHLORIDE Derivation. — The hydrochloride of an artificial al- kaloid, obtained by heating morphine or codeine in her- metically closed tubes with an excess of pure hydro- chloric acid. Properties.— Minute, grayish-white, shining mono- clinic prisms, without odor, having a faintly bitter taste and acquiring a greenish tint upon exposure to light and air. It should be kept in small, dark, amber-colored vials. Soluble in water, alcohol, ether and chloroform. Dose. — As an emetic for dogs, % to 1/5 gr., by the mouth, and 1/20 to 1/10 gr, subcutaneously. Dose. — As an expectorant, subcutaneously, horses, ^ gr. ; foals, l/o gr. ; cattle, ll/) gr. ; sheep and calves, % gr. ; dogs, 1/10 to 1/5 gr. By the mouth, dogs, 1/40 to 1/25 gr as an expectorant. Action and Uses — It is a prompt and effectual emetic in animals that vomit, acting on the vomiting cen- ters. When 1/5 gr. dissolved in water is swallowed by either man or dog repeated vomiting occurs, but is not followed by so much nausea as usually follows the use of tartar emetic. Increases bronchial, intestional and pancreatic secretions. Chronic dry bronchitis of dogs is benefited by apomorphine. In pica cattle, ll/4 gr. 128 VETERINARY MEDICINES may be given on three consecutive days, or in recent cases, 3 gr. are given subcutaneously in the same way. It relieves choking in animals by its relaxing spasm and increasing secretion of the gullet. Three-quarters of a grain may be injected under the skin in horses. It should be tried before using a probang, as, if successful, it will act within fifteen or twenty minutes. The alka- loid decomposes in crystal and rapidly in solution, be- coming toxic and of a green hue. Solutions should be freshly prepared. PETROLATUM LIQUIDUM— LIQUID PETRO- LATUM Derivation. — A mixture of hydrocarbons, chiefly of the marshgas series, obtained by distilling off the lighter and more volatile portions from petroleum and purifying the residue when it has the desired consistence. Properties. — A colorless, or more or less yellowish, oily transparent liquid without odor or taste; or giving off, when heated, a faint odor of petroleum. Insoluble in water; scarcely soluble in cold or hot alcohol, or cold absolute alcohol ; but soluble in ether, chloroform, carbon disulphide, oil of turpentine, benzine, benzol and fixed and volatile oils. PETROLATUM— VASELINE— COSMOLINE Derivation. — A mixture of hydrocarbons, chiefly of the marshgas series, obtained by distilling off the lighter and more volatile portions from petroleum and purify- ing the residue when it has reached the desired melting point. Properties. — A fat-like mass of about the consist- ence of an ointment varying in color from yellowish to light amber, having not more than a slight fluorescence, even after being melted ; transparent in thin layers, com- pletely amorphous and without odor or taste, or giving off when heated a faint odor of petroleum. In other re- spects soft petrolatum has the solubility of liquid petro- latum. ACTIONS^ USES AND DOSE 129 PETROLATUM ALBUM— WHITE PETROLA- TUM Derivation. — A mixture of hydrocarbons, chiefly of the methane series, obtained by distilKng off the lighter and more volatile portions from petroleum and purifying the residue. Properties. — A white, unctuous mass, of about the consistency of an ointment, transparent in thin layers, completely amorphous; without odor or taste. Other- wise it resembles, in solubility, petrolatum. Action. — All ])reparations of petrolatum are valu- able emollients. They soothe, protect and soften parts to which they are applied and are superior to animal or vegetable fats or oils in not becoming rancid. Uses. — Petrolatum may be used alone, or as an ex- cipient in the preparation of ointments, but does not aid the absorption of drugs (as do alcohol, glycerine, chloro- form, animal oils and fats), for it is not itself absorbed even when administered internally. Petrolatum exerts a demulcent action upon the mucous membrane of the alimentary tract, and may be prescribed in electuary or capsule in inflammation thereof. Liquid petrolatum is useful given internally in piles (dogs one-half ounce twice daily) to soften the feces. It is also very service- able with menthol and eamj^hor (equal parts, fifteen grains to one ounce) dropped in the nostrils (with a medicine dropj)er) for dogs with acute nasal catarrh. Petrolatum is sold universally under the proprietary names of vaseline and cosmoline, and is often combined with antiseptics for medical and surgical purposes in skin diseases and upon inflamed mucous membranes, blisters and abraded surfaces and sores. It is one of the most useful agents in lubricating instruments, pro- tecting metal from rust, and is sometimes employed as a vehicle for electuries. It should not be used as a base for blisters or other ointments where absorption is de- sired. 130 VETERINARY MEDICINES PIX LIQUIDA— TAR An empyreumatic oleo-resin obtained by the de- structive distillation of the wood of various species of pines, especially that of Pinus palustris. Habitat. — United States. Properties. — Thick, viscid, semi-fluid, blackish- brown; heavier than water, transparent, in thin layers, becoming granular and opaque with age ; odor empyreu- matic terbinthinated; taste sharp empyreumatic. Tar is slightly soluble in water; soluble in alcohol, fixed or volatile oils and solutions of potassium or sodium hy- drate. Constituents.- — Oil of turpentine; methlic alcohol; creosote; guaiacol; phenol; pyrocatechin ; toluol; xylol; acetic acid; acetone; resins. Dose. — Horses and cattle, l/o to 1 oz.; sheep and pigs, 1 to 2 dr. ; dogs, 1/4 to 1 dr. Oil of tar should be diluted with alcohol, glycerine, syrup or mucilage, PREPARATIONS UNGUENTUM PICIS LIQUIDAE— TAR OINT- MENT Composed of tar, 500; yellow wax, 150; lard, 350. Used alone as a healing ointment or as a base. OLEUM PISIS LIQUIDAE— OIL OF TAR A volatile oil distilled from tar. Properties. — An almost eolorless liquid when fresh- ly distilled, but soon acquiring a dull, reddish brown color, and having a strong tarry odor and taste. Solu- ble in alcohol. Dose. — Horses and cattle, 1 to 2 oz. ; sheep and pigs, 2 to 4 dr.; dogs, l/o to 2 dr. Actions. — Internally, is an antiseptic stimulant ex- pectorant. Externally, it is rubefacient and if continu- ally rubbed in may eause papules and pustules. Uses. — Tar or the oil is commonly used in cough ACTIONS^ USES AND DOSE 131 mixtures and in subacute and chronic bronchitis. By inhalation (which is done by pouring tar on a heated shovel or a shovel containing live coals or by adding a pint of tar to a gallon of water, heating the mixture by placing hot bricks or stones in the solution) either method is excellent for its local antiseptic and stimulat- ing effects in the various catarrhal diseases; bronchitis, distemper, strangles, etc. Care should be used so that the vapor be not inlialed too hot. Externally, it is a very useful agent in various skin diseases, both parasitic and non-parasitic; for this the official ointment may be used, or if used on a large sur- face on dogs it should be diluted with an equal amount of zinc ointment. PLUMBI OXIDUM— LEAD OXIDE Derivation. — Made by roasting lead in the air. Properties. — A hea,vj, yellowish or reddish-yellow powder, or minute scales, without odor or taste. Almost insoluble in water; insoluble in alcohol. Lead oxide is only valuable for its preparations. PREPARATIONS PLUMBI ACETAS— LEAD ACETATE— SUGAR OF LEAD Derivation. — Heat lead oxide in acetic acid and water. Lead acetate crystallizes on cooling. Properties. — Colorless, shining, transparent; mono- clinic prisms or plates, or heavy, white crystalline masses, or granular crystals, having a faintly acetous odor and a sweetish, astringent, afterwards metallic taste. Ef- florescent and absorbing carbon dioxide on exposure to the air. Soluble in two parts of water and in thirty parts of alcohol. Dose. — Horses and cattle, l/o to 1 dr.; sheep and pigs, 15 to 20 gr. ; dogs, 1 to 2 gr. Given in capsule or solution. 132 VETERINARY MEDICINES PREPARATIONS LIQUOR PLUMBI SUBACETATIS — SOLU- TION OF LEAD SUBACETATE— GOULARD'S EXTRACT An aquous liquid, containing in solution about 25 per cent of lead subacetate. Derivation. — Made from acetate of lead, 180 parts; oxide of lead, 110 parts; boiled together in water to make 1000 parts. Properties. — A dense, clear colorless liquid, sweet, astringent taste, decomposed by exposure to the air. Actions. — The lead compounds are powerful as- tringents, haemostatics, styptics, anodynes, local seda- tives and desiccants; they coagulate albumen and form a protective coat, also contract small vessels. In large or continued doses they irritate, then paralyze voluntary and involuntary muscles, and also the central nervous system. Uses. — Plumbi acetate is administered internally to check haemorrhages, especially of the stomach and lungs, has been used in purpura in horses with varying results ; it is said to be very good in red water of cattle ; also used in diabetes insipidus; for diarrhoea, lead ace- tate with opium is very good, also in dysentery, chix^nic scouring and bronchorrhoea ; it is occasionally prescribed as a gargle. Externally used in solution to check superficial in- flammation; used on burns, bruises and ulcers, also to cool and reheve strained and inflamed tendons and joints, it is also used as a wash to abate the itching of nettle-rash and erythema and other skin diseases; also serviceable in eczema and grease-heel ; used in eye wash but should not be used when there is an abrasion of the cornea, as insoluble compounds are formed; the acetate may be used as an ointment or powder or in solution dis- solved in twenty to forty parts water, a little vinegar or acetic acid increases its solulnlity; it is used in white lotion combined with zinc sulphate and water. ACTIONS, USES AND DOSE 133 Goulard's Extract, four ounces to a pint of water, is used for sprains, bruises, cuts, burns, scratches, grease- heel, etc. For painful affections, tincture of opium, four to six ounces to one pint, or belladonna, two ounces to the pint, are added. Goulard's Extract, one part, lard oil, four parts, makes a good dressing for bhstered or bruised surfaces, grease-heel and other ailments of that class; for skin diseases, eczema, canker of ear in dog, etc. POTASSII ACETAS— POTASSIUM ACETATE Derivation. — Add acetic acid in excess to potassium carbonate. Evaporate to dryness and fuse residue. Properties. — White, deliquescent, satiny, neutral masses of a peculiar odor; also in a granular form. Sol- uble in water and alcohol. Dose. — Horses and cattle, l^ to 1 oz. ; sheep and pigs, 1/) to 1 dr. ; dogs, 5 to 20 gr. POTASSII CITRAS— POTASSIUM CITRATE Derivation. — Neutralize potassium carbonate with a solution of citric acid and evaporate to dryness. Properties. — White, granular, deliquescent pow- der, saline taste, neutral reaction. Soluble in water. Dose. — Same as potassium acetate. Actions. — Potassium acetate and citrate are the least irritant to the stomach of all the potassium salts. They are neutral and have no action on the gastric juice: are not antacid. They are changed into the carbonate of potassium and as such circulate in the blood. Are powerful direct diuretics, stimulate the renal cells direct and increase both the water and the solids of the urine, also diaphoretic ; the citrate more than the acetate. They have a slight depressing action on the heart, and slightly expectorant. Uses. — Potassium acetate and citrate are indicated in irritation or inflammation of the kidneys and bladder and cause absorption of exudations (pleural effusion, for example) through their diuretic power. They are some- times prescribed in fever on account of slight diaphor- 134 VETERINABY MEDICINES etic and powerful diuretic properties. They also stim- ulate bronchial secretions and make it thinner and are recommended accordingly in bronchitis. They are used in gouty conditions, Bright's disease, fevers of all kinds, azotima, dropsical conditions, pleurisy, ascites oedema of the legs, sheath, udder, etc., combined with tonics, as iron, etc. POTASSII BROMIDUM— POTASSIUM BRO- MIDE Derivation. — Potassium bromide may be obtained by adding a slight excess of bromide to a strong solution of potassium hydroxide, evaporating the potassium bromide and bromate to dryness, decomposing the bro- mate by fusing the mixture with charcoal and purifying the crystallization. Properties. — Colorless, or white, cubical crystals, or granules; odorless and having a strong saline taste. Permanent in the air. Soluble in about fifteen parts of water and in about one hundred and eighty parts of al- cohol. SODII BROMIDUM— SODIUM BROMIDE Derivation. — Sodium bromide may be obtamed in the same manner as potassium bromide, sodium hydrox- ide being used in place of potassium hydroxide. Properties. — It occurs in colorless or white, cubical crystals, or a white, granular powder, odorless and hav- ing a saline, bitter taste. The salt absorl)s moisture from the air without deliquescing. Soluble in one and seven-tenths parts of water and in twelve and a half parts of alcohol. Action of Potassium and Sodium Bromide. — They are distinguished depressants of the cerebral and spinal functions, also hypnotic, anaphrodisiac, antispas- modic and alterative. The bromide of potash, like all other potassium salts, is especially a cardiac and muscu- lar paralyzant. They are very diffusible and slowly eliminated; long continued doses produce gastric ca- ACTIONS^ USES AND DOSE 135 tarrh. They reduce the number of respirations and the heart's action and force; lessen activity of brain cells, producing sleep; diminish sensibility of peripheral nerves, causing anesthesia of the skin and mucous mem- brane. Uses. — The bromides, being particularly useful in the treatment of functional nervous diseases, do not possess nearly the value in veterinary medicine that they have in human practice. Consequently their use is limited mainly to canine disorders, as bromides have little influence upon diseases of horses. They are some- times used as sedatives to the nervous system, to lower reflex activity, to produce sleep, to subdue excitement of the genital apparatus and to antagonize congestion of the brain. Used extensively in fits of dogs, twenty or thirty grain doses of the bromide of potash or bro- mide of soda dissolved in a tablespoonful of water; may be used per rectum if necessary in any convulsive or spasmodic condition. In strychnine poisoning, the bro- mide of potash may be used as an antidote in place of chloral hydrate or conjoined with it. Doses. — Horses and cattle, 1 to 2 oz. ; sheep and pigs, 2 to 4 dr. ; dogs, 5 to 60 gr. ; average dose, 20 gr. POTASSII CARBONAS — POTASSIUM CAR- BONATE—SALTS OF TARTAR Derivation. — The solution resulting from the lixi- viation of wood ashes is boiled to drj^ness and the result- ant mass is the potash of commerce. This is purified to some extent by burning in ovens, forming pearlash, a mixture of the hydrate and carbonate. Water dissolves mainly the carbonate which is obtained by evaporation of the aqueous solution. Properties. — A white, granular powder, odorless and having a strongly alkaline taste; very deliquescent. Soluble in water; insoluble in alcohol. Dose. — Horses and cattle, l/o to 1 oz. ; sheep and pigs, 1/2 to 1 dr. ; dogs, 5 to 20 gr. 136 VETERINARY MEDICINES POTASSII BICARBONAS— POTASSIUM BICARBONATE Derivation. — Potassium bicarbonate is obtained by saturating a strong aqueous solution of potassium car- bonate and carbonic anhydride. Properties. — Colorless, transparent, monoclinic prisms, odorless and having a saline and slightly alkaline taste. Permanent in the air. Soluble in water. Al- most soluble in alcohol. Dose. — Same as potassium carbonate. Action and Uses. — They stimulate the production of gastric juice when administered before meals with bitter tonics, or after meals to overcome excessive acidity of the stomach; used in rheumatism and gouty condition to make blood alkaline and overcome lactic acid. Use- ful as an antacid in nettle-rash and other itching skin diseases. Internally and externally as a mild wash, two to four drachms to the ])int. A solution of the same strength is injected to overcome acidity of the uterus in leucorrhoca, etc. Calculus made up of ammonium, magnesium and phosphates occur in the bladder and urethra of highly fed rams and wethers. For this use potassium bicarbonate one-half to one drachm, wxll di- luted, conjoined with laxative diet and belladonna to dilaie urethra; it is less certain as a diuretic than the acetate or nitrate of potassium. POTASSII HYDROXIDUM — POTASSIUM HYDROXIDE— CAUSTIC POTASH Derivation. — A solution hydrate is evaporated, and this is fused and run into moulds. Properties. — White, translucent pencils or fused masses, hard and brittle, showing a crystalline fracture; odorless or having a faint odor of lye and a very acid and caustic taste. Very deliquescent in air. Soluble in wa- ter and alcohol. Not used in this form to anv extent. ACTIONS, USES AND DOSE 137 LIQUOR POTASSII HYDROXIDI— SOLUTION OF POTASSIUM HYDROXIDE A solution of potassium hydroxide (caustic potash) containing about five per cent of the hydroxide. Derivation. — Boiling a solution of potassium car- bonate with calcium hydrate leaves potassium hydrate in solution, while calcium carbonate is precipitated. Properties. — A clean, clear colored liquid, odorless, having a very acrid and caustic taste. Dose. — Horses and cattle, l^ to 1 oz. ; sheep and pigs, 1/2 to 1 dr. ; dogs, 5 to 10 m. Action and Uses. — Externally potassium hydrox- ide and the solution of potassium hydroxide are irritant and caustic, when applied they abstract water from the parts. They dissolve fatty matters, antacids and if well diluted acts as a sedative. Internally not used to any extent, as milder salts of potassium are preferred, is antacid, alterative, febrifuge and diuretic. Large un- diluted doses corrode and inflame the alimentary tract, cause colicy pains, great depression and sometimes perf- orations. Caustic potash is sometimes used to destroy warts and fungous growths. A dilute solution is used to cauterize poisoned wounds, but is dangerous, as it may penetrate too dee])ly and spread. This can be overcome by washing with vinegar. POTASSII lODIDUM— POTASSIUM IODIDE Derivation. — Potassium iodide may be prepared in the same manner as potassium bromide iodine, being used in place of bromine. Properties. — It is a colorless, transparent, translu- cent, or opaque white, cubical crystals, or white granular powder, having a pecuHar, faint, iodine-like odor and a pungent, saline, afterwards bitter, taste. Permanent in dry air and but slightly deliquescent in moist air. Solu- ble in 0.7 parts of water, and in about 12 parts of alco- hol at 77° F., in 0.5 parts of boiling water, in 6 parts of boiling alcohol; also soluble in 2.5 parts of glycerine. Actions. — Potassium iodide closely resembles iodine 138 VETERINARY MEDICINES but is less powerful and devoid of local irritant action. Medical doses are antiseptic, desquamatic, deobstruent, expectorant, alterative and diuretic. It stimulates the lymphatic system. It is readily soluble, and is quickly absorbed in the tissues, where it undergoes decomposi- tion; the iodine, when liberated, apparently combines with albumenoids and acts specially on the lymphatic glands and vessels, modifying nutrition, hastening meta- bolism and promoting absorption. It is doubtless in this way that it also unites with lead and mercury de- posited in the tissues, renders them soluble, carries them into the circulation and causes their elimination. It is quickly excreted by the mucus and skin surfaces, but chiefly by the kidneys. Uses. — Potassium iodide is useful in promoting ab- sorption of enlarged lymphatic glands, and its action should be assisted by the application of iodine or red iodide of mercury externally. Potassium iodide in small doses diminishes congestion and increases the fluid- ity and amount of secretions in acute laryngitis, acute and subacute bronchitis, and appears to possess an al- terative action in improving the condition and nutri- tion of the bronchial mucous membranes. It is also of some value in asthma, pulmonary emphysema and chronic bronchitis, unassociated with copious secretion. Chronic pleuritis, pericarditis and ascites are treated with potassium iodide, which assists absorption and oc- casionally exerts a diuretic effect. Tardy resolution of pneumonia consolidation is hastened by potassium io- dide. Endocarditis with cardiac hypertrophy is said to be benefited by potassium iodide and digitalis. Champignon, or scirrhus cord in horses, is sometimes cured by the sorbefacient powers of potassium iodide in full doses. Potassium iodide is of value in goiter of dogs, calves and sheep when tincture of iodine is used ex- ternally. "Roaring" and "thick wind" may be cured by the administration of potassium iodide. It is the best medicine known for actinomycosis. Potassium iodide has a clinical reputation for its power to aid absorption and ACTIONS^ USES AND DOSE 139 resolution in inflammation or effusions of the brain or spinal cord, in paralysis of the body or limbs and in- flammation of the membranes covering the brain. Doses. — Horses, 2 to 4 dr. ; cattle, 3 to 6 dr. ; sheep and pigs, 15 to 30 gr. ; dogs, 1 to 10 gr. It should be given to the larger animals in doses of three drachms daily, until iodism appears, which shows itself by loss of appetite, an irritable, catarrhal condition of the mucous membranes of the nostrils, eyes, throat and digestive organs, a vesicular skin eruption, absti- nence from water, diminished secretions of urine, tem- perature elevated and emaciation. POTASSII NITRAS— POTASSIUM NITRATE- NITRATE OF POTASH— NITER- SALTPETRE Derivation. — Nitrate of potash may be obtained by purifying crude niter, or by the interaction of sodium nitrate and potassium chloride. Properties. — Colorless, transparent, six-sided, rhombic prisms, or a crystalline powder, odorless and having a cooling, saline and pungent taste. Permanent in the air. Soluble in water; very sparingly soluble in alcohol. Dose. — Horses and cattle, 1 to 2 oz. ; sheep and pigs, 2 to 6 dr. ; dogs, 5 to 20 gr. Actions. — Large doses irritate the stomach, bowels and kidneys ; medical doses are alterative, febrifuge, diu- retic and feebly laxative. Excreted by the bronchial glands, skin and kidneys, increasing secretions of these organs ; is a cardiac depressant and mild refrigerant and diaphoretic. Nitrate of potash is more frequently prescribed than any other potash salt in veterinary medicine, and is com- monly considered one of the best febrifuges. Its only service in fevers is as a diuretic. Uses. — In certain febrile conditions; in oedema of legs should be combined with digitalis and general tonics. For dropsical conditions the acetate and citrate are better. 140 VETERINARY MEDICINES Nitrate of potash is highly recommended in acute laminitis, two to four ounces once or twice daily is given by some veterinarians. POTASSII CHLORAS— POTASSIUM CHLORATE Derivation. — Pass chlorine into a mixture of potas- sium carbonate and calcium hydrate; dissolve the result in boiling water and recover the chlorate by crystalliza- tion. Properties. — Colorless, lustrous, monoclinic prisms or plates, or white ])owder, odorless, having a cooling, saline taste. Permanent in the air. Soluble in water. Insoluble in absolute alcohol, but slightly soluble in mix- tures of alcohol and water. Explodes readily when rubbed with sugar, sulphur, charcoal, glycerine and many other substances. Dose. — Horses and cattle, 2 to 6 dr. ; sheep and pigs, % to 1 dr. ; dogs, 5 to 20 gr. Action. — Chlorate of potash is antiseptic, antacid, alterative, sialagogue, diuretic, febrifuge, and cardiac depressant; irritant to the gastro-intestinal tract and kidneys. Externally, antiseptic, mild stimulant and re- frigerant. Is a protoplasmic poison, as is the nitrate; disintegrates the red blood corpuscles. Uses. — ^^Chlorate of potash is valuable as a wash or gargle, it stimulates the salivary and buccal glands, moistening the dry, parched mouth. It soothes and heals aphthous eruptions and ulcerations of the mouth and throat; while in catarrh, sore throat and In-onchitis it thins the secretions and promotes expectoration. Like other salines, in febrile and inflammatory diseases, whether in horses or cattle, it is believed to lower pulse and temperature, clean the tongue, improve appetite, gently stimulate the bowels and render the evacuations more natural and less coated with mucus. It is fre- quently prescribed with good results in horses suffer- ACTIONS^ USES AND DOSE 141 ing from catarrhal conditions of the bowels. In epi- zootic catarrh, purpura, it is very beneficial prescribed with iron salts, as it increases the coagulability of the blood. It is also prescribed with other salines, bitter tonics or stimulants. JNIost animals of their own ac- cord will take an ounce daily, dissolved in their drink- ing water or gruel. Pine tar is a soothing electuary for sore throat, it is conjoined with camphor, belladonna and treacle. POTASSII BITARTRAS— POTASSIUM BITAR- TRATE— CREAM OF TARTAR Derivation.— Obtained from crude tartar deposited on the sides of wine casks during fermentation of grape juice, by purification. Properties.— Colorless or slightly opaque, rhombic crj'^stals, or a white, somewhat gritty powder; odorless and having a pleasant, acidulous taste. Permanent in the air. Soluble in water; very sparingly soluble in alcohol. Dose. — Horses and cattle, l/o to 1 oz.; sheep and pigs, 2 to 4 dr. ; dogs, l/o to 1 dr. Actions. — Potassium bitartrate is a non-irritating purgative in large doses. It is a hydragogue cathartic and has a strong affinity for water ;' abstracting it from the blood vessels in the bowels, holding the same in solu- tion and thus flushing out the intestines. Uses. — Is used for liver disease, chronic constipation, skin disease and as a refrigerant in febrile conditions. It should be given in solution and is useful in dropsies, more particularly of renal origin; also in catarrhal jaun- dice, and as a laxative for foals and calves. In cases where the urine of the horse is thick, stringy and high colored, it will cause it to regain its normal" state. It may easily be administered in either food or drinking water, and its diuretic effect is enhanced when given with a large amount of .water. 142 VETERINARY MEDICINES POTASSII PERMANGANAS— POTASSIUM PERMANGANATE— PERMANGANTE OF POTASH Origin. — Potassium permanganate may be obtained by the interaction of potassium chlorate, potassium hy- droxide and manganese dioxide. Actions. — Potassium permanganate is a powerful oxidizing agent and readily yields up its oxygen in the form of ozone; hence it is an antiseptic and deodorizer. Full strength it is a mild caustic. Diluted it is astrin- gent. Uses. — Potassium permanganate is advantageously used to deodorize and disinfect foul smelling wounds, the nostrils in eczema, nasal gleet, the mouth in aphthae, throat when ulcerated, diphtheria, the uterus in metritis, retention of placenta and leucorrhoea. It is sometimes given internally in purperal, erysipelas and septicaemia, also to cleanse hands or instruments. Potassium per- manganate is used as a prophylactic in solutions of one in five thousand in poultry. Potassium permanganate acts as an oxidizant much more freely upon some organic substances than upon others, by virtue of which fact it is a valuable antidote, notably in the treatment of morphine-poisoning and of snake-poisoning. In the former condition it acts only upon the alkaloid in the stomach, but should be given frequently during the continuance of the sj^mptoms in order to destroy any morphine which may have been eliminated from the blood into the stomach. In snake- poisoning a concentrated solution of it should be in- jected freely and immediately into the part which has been bitten. Potassium permanganate is one of the best medicines with which to sterilize the hands before operating. A saturated solution is used for this pur- pose and the stains may be removed from the hands by washing them in saturated solution of oxalic acid, or in a dilute solution of hydrochloric acid. Dose. — Horses and cattle, 15 gr. to 1 dr. in one pint of water; sheep and pigs, 5 to 10 gr. in half pint of wa- ACTIONS, USES AND DOSE 143 ter; dogs and cats, I/2 to 11 gi\ in capsule with kaolin. For poultry it should be diluted one part to five thou- sand parts of water. As an antiseptic and deodorizer for disinfecting newly cut or old foul smelling wounds and for surgical purposes one drachm to half an ounce of the drug to one pint of water. As an eye wash use about one in two thousand to one in one thousand. For uterine injections use one in five thousand to one in two thousand. As an antidote for opium, morphine or weed-poison- ing it can be administered by the mouth or hypodermic- ally. When given for these purposes the amount of po- tassium permanganate should equal that of the poison taken. QUSSIA— BITTER WOOD Qussia is obtained from chips or shavings from a tall tree 70 to 100 feet high. Habitat. — Jamaica and other West Indian Islands. Properties. — Qussia has no odor, but an intensely bitter taste, dependent on a neutral crystalline prin- ciple, quassin. There is also a volatile oil, but no tannin. PREPARATIONS EXTRACTUM QUASSIAS— EXTRACT OF QUSSIA Made by percolation with water, boiling and evapo- ration to pilular consistence. Dose. — Horses and cattle, 1 to 2 dr. ; sheep and pigs, 15 to 30 gr. ; dogs, l/o to 3 gr. FLUIDEXTRACTUM QUASSIAE— FLUIDEX- TRACT OF QUSSIA Made by maceration and percolation with alcohol and water and evaporation. Dose. — Horses and cattle, 1 to 2 oz. ; sheep and pigs, 2 to 4 dr.; dogs, 15 m. to 1 dr. 144 VETERINARY MEDICINES TINCTURE QUSSIAE— TINCTURE OF QUSSIA Made by maceration and percolation of qussia, 200 parts; with alcohol and water to make 1000. Dose. — Horses and cattle, 2 to 4 oz. ; sheep and pigs, 14 "to 1 oz. ; dogs, 1/2 to 2 dr. Action and Uses. — Qussia is a bitter stomachic and tonic. It resembles gentian and cahnnba. It is pre- scribed for the several domestic animals in dyspepsia, loss of appetite and convalescence from debilitating dis- orders. Qussia is the most efficient vermicide in our possession for the destruction of Oxyuris curvula, horse; and O. vermicularis, dog, in the lower bowel. An in- fusion is employed for this purpose, made by soaking qussia chips in cold water (two drachms of the qussia to one ])int of water) for half an hour. The rectum should be first thoroughly washed out with soap and water and one-half puit of this infusion is given in enema to dogs; two quarts to horses. The infusion is a narcotic poison for flies and other insects. JALAPA— JALAP The dried tuberous roots of Exogonium Purga Ben- tham, yielding not less than eight per cent of total resin, but not more than one and a half per cent of the resin soluble in ether. Habitat. — Southern United States and Mexico. Properties. — The root is dark brown, with numer- ous concentric circles com])osed of small resin cells; frac- ture resinous, lustrous, not fibrous; odor slight, but peculiar, smoky and sweetish; taste sweetish and acrid. Dose. — Pigs, 2 to 4 dr.; dogs, 1 to 2 dr.; cats, I/2 to 1 dr. RESINA JALAPA— RESIN OF JALAP Made by maceration and percolation with alcohol, partial distillation; precipitation with water; washing and drying. Properties. — Yellowish-brown powder, having a slight, peculiar odor, and a somewhat acrid taste. Per- ACTIONS^ USES AND DOSE 145 manent in air. Soluble in alcohol, ether, fixed and vol- atile oils. Dose. — Pigs, 30 gr. to 1 dr. ; dogs, 15 to 30 gr. ; eats, 5 to 15 gr. Action and Uses. — Jalap is a hydragogue cathartic, a vermifuge and cholagogue. By adding calomel to jalap its power is increased; jalap is more active than senna, but is less powerful and irritating than gamboge or podophyllum. Jalap may be given to expel round and thread worms; in torpidity of the liver, and in chronic constipation in dogs. PREPARATIONS PULVIS JALAPA COMPOSITUS— COMPOUND POWDER OF JALAP Composed of jalap, 35 parts; potassium bitartrate, to make 100. Dose. — Dogs, 15 to 30 gr. RHAMNUS PURSHIANA — CASCARA SA- GRADA— CALIFORNIA BUCKTHORN CHITTEM BARK The bark of Rhamnus Persiana de Candolle (nat. ord. Rhamnaceae). Collected at least one year before being used. Habitat.^ — ^United States from Northern Idaho west to the Pacific Ocean. Properties. — Externally the bark is reddish-brown. Intemallv vellowish to light brownish, becomino- dark with age. Odor distinct ; taste bitter and slightly acrid. Constituents. — Three resins ; a neutral body ; a vol- atile oil ; malic and tannic acids. Dose. — Dogs, 5 to 30 gr. ; cats, 1 to 5 gr. PREPARATIONS FLUIDEXTRACTUM RHAMNI PURSHIANAE FLUIDEXTRACT OF RHAMNUS PUR- SHIANA Made by maceration and percolation with diluted alcohol, and evaporation. Dose. — Dogs, 5 to 30 m. ; cats, 1 to 5 m. 146 VETERINARY MEDICINES FLUIDEXTRACTUM RHAMNI PURSHIANA AROMATICUM AROMATIC FLUIDEXTRACT OF CASCARA SAGRADA Dose. — Dogs, 5 to 30 m. ; cats, 1 to 5 m. Action and Uses. — Used as a non-irritant tonic laxative or cathartic; small doses are stomachic; to overcome chronic constipation, give small repeated doses; very useful in canine practice. The aromatic fluidextract is the best preparation, and is occasionally given to dogs and cats with castor oil. RHEUM— RHUBARB The dried roots of Rheum, of which there are sev- eral species. Habitat. — China and Thibet. Properties. — When powdered it is of a bright orange-yellow, odor characteristic; taste bitter, astrin- gent; gritty when chewed. Dose. — As a stomachic — Horses and cattle, 1 to 2 ozs. ; sheep, 1 dr.; dogs and cats, 5 to 10 gr. As a mild purgative — Foals and calves, 1 to 2 dr.; dogs and cats, 1/2 to 2 dr. ; poultry, 5 to 10 gr., in pill. PREPARATIONS FLUIDEXTRACTUM RHEI— FLUIDEXTRACT OF RHUBARB Made by maceration and percolation with alcohol and water, and evaporated. Dose. — Same as that of rhubarb. PULVIS RHEI COMPOSITUS — COMPOUND POWDER OF RHUBARB— GREGORY'S POWDER Composed of rhubarb, 25 parts ; magnesia, 65 parts ; ginger, to make 100. Dose. — Foals and calves, l^ to 1 oz.; dogs, ^2 to 3 dr. ACTIONS, USES AND DOSE 147 TINCTURE RHEI AROMATICA— AROMATIC TINCTURE OF RHUBARB Composed of rhubarb, cloves, cinnamon and nut- meg. Dose. — Calves, 2 dr. to 1 oz. ; foals, 2 to 6 dr. ; sheep, 4 dr. to 1 oz.; lambs, % to 2 dr.; dogs, l/o to 3 dr. Action and Uses. — Rhubarb is a stomachic, tonic, astringent, mildly cathartic and cholagogue. Rhubarb is useful where there is a lack of tone to the bowels; used in diarrhoea in small doses, for its stimulating tonic action; as a laxative in large doses or may be combined with other laxatives, to prevent griping in milk-fed animals, or may be combined with bismuth, opium or sulphuric acid, to stop diarrhoea; as a laxa- tive or purgative. The fluidextract or powdered root may be combined with calomel, jalap, etc. SALICINUM— SALICIN A neutral principle (glucoside) obtained from sev- eral species of the willow and poplar tree. Habitat. — Europe, but cultivated in North Amer- ica. Derivation. — Obtained from a decoction of willow bark. Salicin crystallizes on evaporation, after removal of tannin by agitation with lead oxide. It is purified by repeated solution and crystallization. Properties. — A white, silky, shining crystalline needle, or colorless crystalline powder; odorless, and having a very bitter taste. Permanent in air. Solu- ble in 28 parts of water and 30 parts of alcohol. Dose. — Horses and cattle, 2 dr. to 1 oz.; sheep, 1 to 4 dr. ; pigs, l/o to 1 dr. ; dogs, 5 to 30 gr. Actions. — Bitter tonic, antipyretic, antiferment and antiseptic, somewhat antiperiodic resembling qui- nine in its actions, but not as powerful. Uses. — Used in febrile conditions about the same as quinine, its chief use is in acute rheumatism, for which it is a very good remedy; as a diaphoretic is used in large doses. 148 VETERINARY MEDICINES SINAPIS ALBA— WHITE MUSTARD Derivation. — The dried ripe seeds of Sinapis alba Linne. Habitat. — Southern Europe and Asia; cultivated in temperate climates. Description. — Globular, with a circular hilum; shell yellowish, finely pitted, hard ; embryo oily, with a curved radicle and two catyledons, one folded over the other; free from starch ; inodorous ; taste pungent and acrid. Dose. — Horses, 2 to 4 dr. ; cattle, l/o to 1 oz. ; sheep and pigs, 1 to 2 dr.; dogs, 10 to 15 gr. SINAPIS NIGRA— BLACK MUSTARD Derivation. — The dried ripe seeds of Sinapis Nigra Linne. Habitat. — Same as White Mustard. Description. — Globular, with a circular hilum; shell blackish-brown, or grayish-brown, finel}" pitted, hard; embryo oily, with curved radicle and two cotyle- dons, one folded over the other; free from starch; in- odorous when dry, but when triturated with water, of a pungent, penetrating, irritating odor; taste pungent and acrid. Constituents. — In the presence of water the latter converts the former into the acrid, volatile, official oil of mustard. Dose. — Same as white mustard. Commercial form of mustard is a mixture of black and white mustard, and constitutes Sinapis. PREPARATIONS OLEUM SINAPIS VOLATILE — VOLATILE OIL OF MUSTARD Derivation. — A volatile oil obtained from black mustard by maceration with water and subsequent dis- tillation. Properties. — A colorless or pale yellow, and strongly refractive liquid, havmg a very pungent and ACTIONS, USES AND DOSE 149 acrid odor and taste. Freely soluble in alcohol, ether or carbon disulphide, the solution being neutral to lit- mus paper. Si^ecific gravity 1.013 to 1.020. Actions. — Is irritant or counter-irritant, rube- facient, vesicant or suppurant, according to the manner in which it is used; it acts much quicker than cantha- rides, but its action is not so prolonged; the paste made with water and rubbed into the skin of horses, produces its effects within twenty minutes; in two to six hours vesication occurs, pustules may occur where the paste is used very strong or closely repeated, or too much has been used. The volatile oil of mustard is a very powerful vesi- cant and acts very quickly. Uses. — It is used as a counter-irritant in laryngitis, pharyngitis, bronchitis, pneumonia and pleurisy, or wherever a counter-irritant is indicated; applied in the early congested stages it lessens the pain and relieves difficult breathing, besides reflexly limiting the amount of blood in the parts; it thus limits or decreases the in- flammatory action; also useful in the exudative stages of these diseases; to promote the absorption of the exu- date and thus hasten resolution, or where these diseases remain dormant ; also arouse a depressed nervous system and reflexly stimulates the heart; can be used in spinal diseases or in congestion of the kidneys. It acts best when applied and left on 20 or 30 min- utes, then washed oif and repeat in an hour or two; also used in acute indigestion, applied to the abdomen; also in colic, enteritis and perionitis ; in phlebitis mustard can be used, but a cantharides blister is better. In mak- ing a mustard plaster, take the pure powdered mustard and gradually pour in Avarm M^ater (not hot) ; can also be made with cold water or vinegar; rub in with mod- erate friction. As an emetic for dogs one to two teaspoonfuls in one or two ounces of warm water is very effective. 150 VETERINARY MEDICINES SODIUM BICARBONATE— BICARBONATE OF SODA Origin. — Bicarbonate of soda may be obtained by- exposing crystals of sodium carbonate to carbonic anhy- dride, or by the interaction of sodium chloride and am- monium bicarbonate. Properties. — Bicarbonate of soda is a white, opaque powder, odorless and having a cooling, mildly alkaline taste. It is permanent in diy, but slowly decomposes in moist air. Soluble in twelve parts of water at 15° C. (59° F.) ; above this temperature the solution gradu- ally loses carbon dioxide, and at boiling heat the salt is entirely converted into normal carbonate, insoluble in alcohol. Actions. — Antacid, peristaltic stimulant, carmina- tive, alterative and mildly anodyne externally. It also increases fluidity of and secretion of gastric juice. Uses. — In disorders of the digestive organ admin- istered half hour before meals, to increase the flow of gastric juice, or as an antacid after meals. Young calves when fed on stale skim milk, suffering from dys- pepsia, are benefited by one to two drams of bicarbonate of soda, dissolved in each meal of milk. Bicarbonate of soda has become a very popular medicine in the treat- ment of azoturia in about four ounce doses eveiy four hours. Bicarbonate of soda is used to lessen the irrita- tion of itching skin disorders, as nettle-rash and urti- caria, one ounce to a quart of water. Also used as an injection for leucorrhoea. It is an antidote for acid poisoning. Doses. — Horses, 2 dr. to 4 oz. ; cattle, 2 dr. to 2 oz.; sheep and pigs, 1^ to 1 dr.; dogs, 10 to 30 gr. SODII CHLORIDUM— SODIUM CHLORIDE- COMMON OR TABLE SALT Origin. — INIined in a native state and obtained by evaporation of brine, spring or sea water. Properties. — It is officially described as in "color- less, transparent, cubical crystals, or a white, crystalline ACTIONS^ USES AND DOSE 151 powder, odorless and heavy, a purely saline taste." Per- manent in dry air. Soluble in two and eight-tenths parts of water at 25° C. (77° F.), and in two and a half parts of boiling water; almost insoluble in alcohol. Actions. — Sodium chloride in small doses is a con- diment, restorative, tonic, stomachic, antiferment, al- terative, laxative, anthelmintic antiseptic emetic for dogs and used as an injection for pin worms. Animals deprived of salt do not thrive as it is an essential constituent of food necessary to the composi- tion of HCl in the gastric juice, and of blood plasma, from which it is constantly eliminated in the urine. As an emetic for dogs one to four drams of salt, and one dram of powdered mustard dissolved in four ounces of tepid water. Common salt as an eye-wash is a tonic to the eyes; one dram to a pint of water. Feed animals refined salt, as rocksalt contains irritating properties due to its great impurity. A cooling and stimulating lotion for sprains and bruises may be made by dissolving two ounces of common salt, nitrate of potash and chlo- ride of ammonia in a quart of water. Use pure cooking salt in 7ioi'm.al salt solution, which contains six of one per cent (about fifty grains to a pint) , or may be made at once by adding a heaping tea- spoonful of pure salt into a quart of sterilized water at a temperature of 100° to 110° F. In cases of azoturia give plenty of salt; it acts as a diuretic, makes the horse thirsty and causes him to drink water freely and flushes the kidneys. Dose. — Horse, l/o to 1 oz. ; cattle, 2 to 3 oz.; sheep, 2 to 4 dr.; pigs, 1 to 2 dr.; dogs, 5 to 20 gr. These doses are stomachic alterative; when used for cattle as a cathartic and vermifuge give 10 to 20 ounces in water, usually combined with magnesium or sodium sulphate. SODII SULPHAS— SODIUM SULPHATE- GLAUBER'S SALTS Origin. — Sodium sulphate effloresces on the soil in various parts of Europe. It also exists in solution in many mineral springs in the United States. Sodium 152 VETERINARY MEDICINES sulphate is also produced artificially in several chemi- cal operations. Properties. — Sodium sulphate is in large, colorless, transparent, monoclinic prisms, or granular crystals; odorless, and having a bitter, saline taste. It effloresces rapidly in the air, and finally loses all its water of crystalization. Soluble in three parts of water at the temperature of 59° F., insoluble in alcohol, soluble in glycerine. Actions. — Saline cathartic, chologogue, hepatic stimulant, slightly diuretic and febrifuge. When the effects of a hepatic stimulant is required it should be given in small repeated doses. Uses. — It is advantageously used as a cathartic in congestion of the liver, in small repeated doses, also use- ful in dropsical conditions, influenza, especially where the liver is involved; tetanus and febrile diseases, where the bowels are apt to be constipated. Give two to four ounces in a bucket of water. It is successfully used in itching skin diseases in full doses combined with bicar- bonate of soda two to four ounces. Doses. — As a cathartic, well diluted in water at about 59° r.; horses, 16 to 24 ounces; cattle, 1 to 2 pounds; sheep and pigs, 2 to 4 ounces. Where repeti- tion is necessary tlie dose should be reduced one-eighth of the above. Best results are obtained when admin- istered with capsicum or ginger, as it prevents griping and assists its action. SODII THIOSULPHAS — SODIUM THIOSUL- PHATE— SODIUM HYPOSULPHITE Origin. — Sodium hyposulphite is prepared by dis- solving sulphur in boiling aqueous solution of sodimn sulphite. Properties. — Colorless, transparent, monoclinic prisms; odorless and having a cooling, afterwards bitter taste. Permanent in air 91.4° F., but efflorescent in dry air above that temperature; slightly deliquescent in moist air. Soluble in about 0.35 parts of water at 77° ACTIONS, USES AND DOSE 153 F. At boiling heat the solution is rapidly decomposed ; insoluble in alcohol, slightly soluble in turpentine. Actions. — Sodium hyposulphite is an antiseptic, deodoriser and insecticide. In the presence of acids, without and also within the body, it gives off sulphurous acid, which it therefore resembles. It is thought to destroy ferments and bacteria, and removes offensive smells. Its properties are greatly increased when used along with the tar acids. When standing long in con- tact with water the sulphite decomposes and gives off hydrogen sulphide. Uses. — Sodium hyposulphite is recommended in in- digestion, fermentation, flatulence and foul smelling feces and in general septic conditions, but have proven as useless as most other medicines in their latter stages. It is used externally in parasitic affections of the skin and mouth in the form of an ointment or solution. Doses. — Horses and cattle, l/o to li/G ozs. ; sheep and pigs, % to 1 dr. ; dogs, 5 to 30 gr. SPIRITUS AETHERIS NITROSI— SPIRIT OF NITROUS ETHER— SWEET SPIRITS OF NITER An alcoholic solution of ethyl nitrate, yielding when freshly prepared not less than four per cent of ethyl nitrate. Derivative. — JNIix sulphuric acid ( 40 c. c. ) with wa- ter (120 c. c.) , cool and add alcohol and water each, (85 c. c.) and place in (1000 c. c.) flask surrounded by ice and water. Dissolve sodium nitrate (100 gm.) in water (285 c. c), filter and allow filtrate to drop slowly into the flask above. Wash ethyl nitrate formed with so- dium carbonate solution, to remove acid, and agitate with potassium carbonate, to remove water. All ethyl- nitrate to 22 times its weight of alcohol. Properties. — A clear, mobile, volatile, inflammable liquid, of a pale-yellowish or faintly greenish-yellow tint, having a fragrant ethereal and pungent odor, free from acidity, and a sharp burning taste. Mixes freely with water and alcohol. 154 VETERINAUY MEDICINES Doses as a Stimulant and Antispasmodic. — Horses, 1 to 3 oz. ; cattle, 1 to 4 ozs. ; sheep, 2 to 4 dr. ; pigs, 1 to 2 dr. ; dogs, 15 m. to 1 dr. As a febrifuge and diuretic horses take from 4 dr. to 1 oz. ; 4 dr. is sufficient as a rule every two, three or four hours, usually com- bined with other medicines for all of its purposes, in fever and colic cases. Actions. — Spirit of nitrous ether conjoins the ac- tion of the alcohol and ethyl nitrite of which it consists. It is hence a general stimulant and a relaxer and para- lyzer of non-striped muscle. It relieves acute fever and the difficult breathing of bronchitis and asthma. It is antispasmodic, diaphoretic and diuretic. Large doses are narcotic. Uses. — Consisting of strong spirit and a saline ether, when swallowed it stimulates the stomach and intes- ties; is hence stomachic, carminative and antispasmodic, and is prescribed to animals in indigestion, tympanites, colic and convalescence from debilitating disorders. But its properties as a diffusible nitrite, relaxing spasm of involuntary muscles, also come into operation. It dilates arterioles, thus decreases arterial tension, and hence is of special value in the acute stages of fever, whether depending upon specific conditions or local in- flammation. It relaxes the muscular fibers of the bron- chial tubes, and thus relieves the spasmodic contraction and difficulty of breathing, which characterise catarrh, bronchitis and some forms of asthma. It is specially indicated when the heart action is weak and there is difficulty of breathing — conditions frequently concur- ring in influenza of horses. During excretion, notably by the skin and kidneys, its twofold constitution is fur- ther useful as the alcohol stimulates secretion, while the ethyl nitrate dilates the lumen of contracted vessels, and thus dia])horesis and diuresis are promoted in fevers, local inflammations, rheumatism and other disorders. As it is readily decomposed, even by water, it should be diluted or mixed with other medicines or water only ACTIONS^ USES AND DOSE 155 immediately before it is administered. It is usually given in cold water, beer or linseed tea. SPIRITUS GLYCERYLIS NITRATIS— SPIRIT OF GLYCERYL TRINITRATE— SPIRIT OF GLONOIN An alcoholic solution containing one per cent, by weight, of nitroglycerine. It is probably decomposed in the formation of potassium and sodium nitrite. Derivation. — Nitroglycerine is prepared by drop- ping pure glycerine upon a mixture of sulphuric and nitric acids, kept cool by ice, and purified by washing with water. The official one per cent solution is not explosive unless it becomes concentrated by evapora- tion to an extent exceeding ten per cent. Properties. — A clear, colorless liquid, possessing the odor and taste of alcohol. Caution should be exer- cised in tasting it, since even a small quantity is liable to produce violent headache. Dose. — Horses and cattle, i/o to 1 dr.; sheep and pigs, 5 to 20 m. ; dogs, 1 to 2 m. It is administered hypodermically, intravenously, intracheally or by the mouth according to the emergency of the case. For hypodermic injections one-half drachm is usually suf- ficient and should be diluted with one or two parts of water. It may be repeated in 15 or 20 minutes if nec- essarj^ then every hour or two if required. Care should be exercised not to repeat oftener than is necessary, or to give too large a dose as violent headache is produced by the drug in animals as well as in man. Actions. — Are the same as amyl nitrite, but more prolonged. Spirit of nitroglycerine is the most prompt and pow- erful of all heart stimulants, showing its effects usually within three to five minutes. Uses. — It is best used in the official solution, but for dogs may be carried in tablets or pills containing l/lOO of a grain of glonoin. The spirit, however is more dependable. It is a good plan in cases of cardiac 156 VETERINARY MEDICINES weakness to brace up the heart with Spirit of Glonoin, then maintain the effect with Tincture Strophanthus. SULPHUR SUBLIMATUM — SUBLIMED SUL- PHUR—FLOWERS OF SULPHUR Derivation. — Obtained from native sulphur by sublimation. Properties. — A fine, yellow powder, having a slightly characteristic odor and a faintly acid taste. In- soluble in water; slightly soluble in absolute alcohol; more readily soluble in benzine, benzol, oil of turpentine and many other oils; also in ether, chloroform and in boiling aqueous solutions of alkaline hydrates. Dose. — Horses and cattle, 2 to 4 oz. ; sheep and pigs, 1 to 2 oz. ; dogs, 1 to 4 dr. PREPARATIONS SULPHUR LOTUM— WASHED SULPHUR Derivation. — Obtained from sublimed sulphur, which is treated with diluted ammonia water to wash out sulphurous and sulphuric and ether impurities. Properties. — A fine, yellow powder, without odor or taste. Solubility same as sublimed sulphur. Dose. — Same as sublimed sulphur. SULPHUR PRECIPITATUM— PRECIPITATED SULPHUR Derivation. — Obtained from a solution of sublimed sulphur, 100; in boiling calcium hydrate, 50; by precipi- tation with hydrochloric acid. Properties. — A fine, amorphous powder, of a pale yellow color, -without odor or taste. Solubility same as sublimed sulphur. Dose. — Same as sublimed sulphur. UNGUENTUM SULPHURIS— SULPHUR OINTMENT Composed of washed sulphur, 150; benzoinated lard, 850. Actions. — Sulphur applied to skin or mucous sur- faces is a feeble, mechanical stimulant, and hence re- ACTIONS^ USES AND DOSE 157 lieves chronic passive congestion. It destroys parasitic infestion of the skin. Administered internally it is a laxative and alterative. It destroys fungi on vines and kills similar parasites affecting plants and animals. How much of this toxic effect depends on the sulphur acting as sulphur, and how much on the alkaline sul- phides, sulphuretted hydrogen and sulphurous acid into which it is gradually converted, has not heen determined. Sulphur when swallowed is slowly acted upon by the alkaline secretions of the intestines, and small quantities are converted into sulphides, which stimulate the intes- tinal mucous membrane. A further change liberates sulphuretted hydrogen, which imparts its disagreeable smell to the breath, secretions of the skin and bowels. The greater part of the sulphur swallowed is removed unchanged by the bowels, but a portion is excreted in the urine as sulphates. Over-doses given to horses and other animals cause colic, purging, prostration and some- time fatal gastro-enteritis. Uses. — Sulphur is given to the several domestic ani- mals as a laxative where more powerful purgatives might irritate^as in pregnancy, convalescence from acute diseases in young animals, and in piles. Its alterative and stimulant effects on the skin have led to its use in rheumatism, eczema and cutaneous dis- eases. Some veterinarians affirm that it benefits dry congested conditions of the respiratory membrane by stimulating its epithelial cells and increasing movements of the cilia. It has no special vermicide action. Sul- phur dusted on the skin slightly stimulates, but when dissolved by admixture with an alkali or oil, and smartly rubbed in, it more actively stimulates the cells of the rete Malpighi and thus hastens desquamation; while it also increases contractility of the muscular textures, and hence overcomes passive cutaneous hyperaemia. It thus promotes a healthier action in chronic eczema and psoriases, and in such cases sulphur dressings are used with benefit combined or alternated with iodine or tar acids, and are aided by the internal use of sulphur and 158 VETERINARY MEDICINES arsenic. Infriction of sulphur ointment is stated to re- lieve the pain of rheumatic muscles and joints. Sul- phurous gas from burning sulphur is used for husk or hoose of sheep and calves; this is a disease in which worms affect the bronchial tubes, due to strongylus micrurus in calves and strongjdus filaria in sheep. The patients are placed in a loose box and sulphur is burned about six feet away from them, so that air may dilute the fumes before being inhaled by the animals ; let them inliale the fumes for ten or twenty minutes or longer, unless irritation is too great. TARAXACUM— DANDELION ROOT The fresh and dried roots of Taraxacum officinale, collected in the autumn. Habitat. — United States and Europe. Properties. — The root is about six to twelve inches long-, half an inch to an inch thick, is dark brown ex- ternally and white within. It breaks with a short frac- ture; from the fractured surface a milky juice exudes, which is inodorous, but has a bitter taste. Constituents. — Taraxacin, a bitter, soluble, cryst- alline substance; inulin, taraxacerin, resin causing milky juice, asparagin of no medical value. Dose. — Horses and cattle, 1 to 2 oz. ; sheep and pigs, 2 to 4 dr.; dogs, 1 to 2 dr. PREPARATIONS EXTRACTUM TARAXACI— EXTRACT OF TARAXACUM Made by percolation of powdered taraxacum with alcohol and water, and evaporation. Dose.^ — Horses and cattle, 1 to 4 dr. ; sheep and pigs, 30 gr. to 1 dr. ; dogs, 5 to 20 gr. FLUIDEXTRACTUM TARAXACI— FLUID- EXTRACT OF TARAXACUM Made by maceration and percolation with dilute al- cohol, and evaporation. ACTIONS J USES AND DOSE 159 Dose. — Horses and cattle, 1 to 2 oz. ; sheep and pigs, 2 to 4 dr. ; dogs, 1 to 2 dr. Action and Uses. — Taraxacum is a simple stom- achic and bitter and may be employed in place of gen- tian or calumba. It has been generally taught that taraxacum is a hepatic stimulant and increases the se- cretion of bile. This has been proven valueless. The extract is often used as a base in preparing masses. ZINGIBER— GINGER The scraped and dried rhizome of Zingiber officiale. Habitat. — East and West Indies and India; cul- tivated in tropical climates. Properties. — Ginger owes its taste to a pungent resin, its aroma to a volatile oil, and its medicinal and flavoring properties to both constituents, which are chiefly found in the delicate felted layer lying between the starchy, mealy parenchyma and the brown, horny, external covering. Dose. — Horses, 2 dr. to 1 oz. ; cattle, 1 to 4 oz. ; sheep and pigs, 1 to 2 dr. ; dogs, 5 to 15 gr. PREPARATIONS FLUIDEXTRACTUM ZINGIBERIS— FLUID- EXTRACT OF GINGER Made by maceration and percolation with alcohol, and evaporated so that 1 c. c. equals 1 gm. of the crude drug. Dose. — Same as for ginger. TINCTURE ZINGIBERIS— TINCTURE OF GINGER Made by percolation of ginger with alcohol and water. Dose. — Horses, l/o to 2 oz. ; cattle, 1 to 4 oz. ; sheep, 2 dr. to 1 oz.; pigs, 1 to 2 dr.; dogs, 15 to 30 m. OLEORESINA ZINGIBERIS— OLEORESIN OF GINGER Does. — Horses, 30 m. to 1^4 dr.; dogs, 1 to 5 m. Action and Uses. — Ginger is an aromatic stimu- 160 VETERINARY MEDICINES lant, and is used as a stomachic and carminative for all animals, notably for cattle and sheep. Ginger is ad- ministered internally, promotes gastric secretion, diges- tion and appetite. It is prescribed in atonic dyspepsia, often along with antacids and laxatives. Conjoined with purgatives it diminishes their tendency to nauseate and gripe, and also somewhat hastens their effects. The powder or fluidextract should be added to magnesium and sodium sulphate when given in full purgative doses to cattle or sheep. ZINCI PHENOLSULPHONAS— ZINC SULPHO- CARBOLATE Derivation. — Zinc sulphocarbolate may be obtained by heating a mixture of phenol and sulphuric acid and saturating the product with zinc oxide. Properties. — ^Colorless, transparent, rhombic prisms or tabular crystals; odorless and having an astringent, metallic taste. Soluble in water and alcohol. Dose. — Horses and cattle, 2 to 4 dr.; foals and calves,, 5 to 10 gr. ; sheep and pigs, 20 to 40 gr. ; dogs, 4 to 6 gr. Action and Uses. — Zinz sul])hocarbolate has been employed as an antiseptic astringent stimulant to indo- lent or foul wounds, and in subacute inflammations of the mucous membrane. The solution used m.ay be a little stronger than those of zinc sulphate employed for similar purposes. It is also used as an intestinal anti- septic. ZINCI SULPHAS— ZINC SULPHATE Derivation. — Prepared by dissolving zinc in sul- phuric acid. Iron and tin exist as impurities and are removed by chlorine solution and zinc carbonate. Properties. — A colorless, transparent, rhombic crystal, without odor and having an astringent, metallic taste. Efflorescent in dry air; soluble in water and glycerine; insoluble in alcohol. Dose. — Horses and cattle, 1 to 2 dr. ; sheep and pigs, ACTIONS^ USES AND DOSE 161 10 to 20 gr.; dogs, 2 to 3 gr. As an emetic for dogs, 10 to 15 gr. AcTioxs. — Irritant, emetic, astringent, antiseptic and nerve tonic. Externally it is used as stimulant, astringent and antiseptic; in dogs it is a prompt and efficient emetic, causes no depression and acts both on the stomach nerve centers; poisonous or long continued large doses in the horse dr^^ up the secretions, cause nausea, colic and efforts to vomit ; dogs cannot be pois- oned by it as it causes vomiting. Uses. — As a tonic it is inferior to iron; chief use is externall}^ as an astringent; it is used in white lotion combined with lead acetate; sometimes used internally with opium to stop excessive sweating in frequent small doses. Used as a safe and prompt emetic for dogs and pigs. Externally in solution as an astringent and stimu- lant for wounds, ulcers, simple ophthalmia and irritable conditions of the mucous membrane of the uterus or vagina and urethra, vesicular and pustulant skin erup- tions. Proper strength, one ounce to one quart of wa- ter in ophthalmia, one-half to one draclim to one pint of water. ZINCI CARBONAS PRAECIPITATUS — PRE- CIPITATED ZINC CARBONATE Derivation. — Solutions of nearly equal weight of sodium carbonate and zinc sulphate are boiled together; dry precipitate. This salt is in reality a mixture of zinc carbonate and oxide, in varying proportions, with water of crystallization. Pboperties. — An impalpable white powder, of somewhat variable chemical composition, without odor or taste; insoluble in water or alcohol. ZINCI OXIDUM— ZINC OXIDE Derivation. — Zinc oxide, may be prepared by ex- posing zinc carbonate to a dull red heat, or from metallic zinc by combustion. 162 VETERINARY MEDICINES Properties. — An amorphous, white powder without odor or taste. Insoluble in water or alcohol. Dose. — Horses and cattle, 1 to 2 dr.; sheep and pigs, 10 to 20 gr.; dogs, 5 to 10 gr. Not much used in- ternally. PREPARATIONS UNGUENTUM ZINCI OXIDE— OINTMENT OF ZINC OXIDE Composed of zinc oxide, 200 parts; benzoinated lard, 800 parts. Actions and Uses. — Used chie% as a dusting pow- der for wounds and excoriated surfaces; used alone or conjoined with boric acid, subnitrate of bismuth, calomel or in the form of the zinc oxide ointment is desiccant, mildly astringent and protective; it is sometimes used in chorea, epilepsy and other nervous diseases; to check excessive sweating and in diarrhoea. Used extensively in woimds and diseases of the cow's udder. ZINCI ACETAS— ZINC ACETATE Derivation. — Dissolve zinc oxide in diluted acetic acid and boil. Evaporate and crystallize. Properties.— Soft, white, six-sided monoclinic plates, of a pearly lustre, having a faintly acedious odor and an astringent metallic taste. Soluble in water and in al- cohol. Dose. — Same as zinc sulphate. Action and Uses. — The same as zinc sulphate; it is the acetate of zinc which is the soluble agent in white lotion, caused by the acetate of lead and sulphate of zinc changing their composition. ZINCI CHLORIDUM— ZINC CHLORIDE Derivation. — Dissolve zinc in hydrochloric acid by boiling. The solution contains the zinc chloride with chlorides of iron and lead as impurities. These are pre- cipitated by adding first nitric acid then zinc carbonate. Filter and finallv evaporate. ACTIONS^ USES AND DOSE 163 Properties. — A white, granular powder, or porce- lain-like masses, irregular or moulded into pencils ; odor- less; of such intensely caustic properties as to make tast- ing dangerous unless the salt be dissolved in much water, when it has an astringent, metallic taste; very deli- quescent; soluble in water and alcohol. LIQUOR ZINCI CHLORIDE — SOLUTION OF ZINC CHLORIDE Derivation. — Made from zinc chloride and water. It should contain about 50 per cent, by weight, of the salt. Zinc chloride is used externally only. Properties. — A clear, colorless, liquid, odorless, having a very astringent, metallic taste. Action and Uses. — Is caustic and escharotic, used full strength or in a strong solution; penetrates very deeply and causes deep sloughing; an irritant and cor- rosive poison; mild medical solutions are antiseptic and astringent; is also disinfectant and deodorizer. Can be used as a caustic when indicated ; used with caution, for granulations in chronic ulcers and foot-rot in sheep; to slough out all kinds of fistula, usually mixed with one or two parts of flour made into a paste with water, two ounces in a pint of water is injected as a caustic into fistulous tracts; two or three per cent solution or two to four drachms to the pint of water is used for ordinary astringent purposes and as a parasiticide. 164 VETERINAUY MEDICINES VALUABLE DRUGS AND THEIR DOSES FOR DOMESTIC ANIMALS In the list of doses, oz. stands for ounce, pt. for pint, lb. for pound, gr. for grain, dr. for dram, dp. for drop. Name of Drug Cattle Sheep Horses Hogg Dogs Alcohol Alum Ammonia Aromatic. Aniseed Arnica Tincture. . . . Asafetida Tincture. . Boracic Acid Brandy Calomel Camphor Spirit Carbolic Acid Castor Oil Chalk Codliver Oil Copperas Copper Sulphate. . . . Digitalis Epsom Salts Fowler's Solution. . . Gentian Ginger Glauber Salts Iodide of Potash. . . . Iron Sulphate Jamaica Ginger Laudanum Lead Acetate Lime Water Linseed Oil Mustard Nitre Nux Vomica Olive Oil Pepper Potassium Bromide. Quinine Rhubarb Saltpeter Soda Sulphur Turpentine 4 oz. 3-4 dr. 2oz. 1-5 oz. 1 oz. 3 oz. 3 dr. 4 oz. 1-2 dr. 1 oz. 1-2 dr. 1 pt. 2 oz. 3-8 oz. 2 dr. 2-4 dr. 10-30 gr. 1 lb. 5 dr. 5-8 dr. 5-8 dr. 1-1.5 lb. 1-2 dr. 2 dr. 2 oz. 2-5 oz. 1 dr. 4-6 oz. 1-2 pt. 1 oz. .3-8 oz. 2 dr. 1-2 pt. 2-4 dr. 2 oz. 1-2 dr. 1-2 oz. 1-3 dr. 2 oz. 3-4 oz. 2 oz. 1-2 oz. 40 gr. 1-2 dr. 1-2 dr. 2 dr. .5 oz. 20 gr. 1-2 oz. 5-20 gr. 2 dr. 10-20 dp. 2-4 oz. 1-2 dr. 3-8 dr. 20 gr. 20-30 gr. 5-15 gr. 1-4 oz. 5-20 dp. 1-2 dr. 1-2 dr. 1-4 dr. 10-25 gr. 25 gr. .5 oz. 1-4 dr. 25 gr. 2 oz. 6-12 oz. 1-2 dr. 1 dr. 30-40 gr. 3-8 dr. 15-25 gr. 2-4 dr. 5-10 gr. 1 dr. .5-1 dr. 2-4 dr. 1-2 oz. 1-4 dr. 2-4 oz. 2-4 dr. 1-2 oz. 1 oz. .5-1 oz. 2 oz. 1-3 dr. 2-4 oz. 1 dr. 2-4 dr. .5-2 dr. 1 pt. .5-2 oz. 2-6 oz. 1 dr. 2-4 dr. 10-50 gr. .5-1 lb. 2-4 dr. 4-8 dr. 2-8 dr. .5-1 lb. .5-2 dr. 1-2 dr. 1 oz. 1-4 oz. 1 dr. 4-6 oz. .5-1 pt. .5-1 oz. 1-2 oz. 1-2 dr. 1-2 pt. 1-3 dr. 1-2 oz. 50-60 gr. 1-2 oz. 2-4 dr. 1-1.5 oz 2-4 oz. 1-2 oz. 1-2 oz. 40 gr. 1-2 dr. 1 dr. 1 dr. 2 dr. 15 gr. 1-2 oz. 5-20 gr. 15 dp. 5-15 dp. 2-4 oz. 1 dr. 2-6 dr. 10 gr. 20-30 gr. 3-10 gr. 1 oz. 5-20 dp. 1-2 dr. 15-60 gr. 1 oz. 5-20 gr. 25 gr. .5-1 dr. 1-2 dr. 20 gr. 2 oz. 5-10 oz. 1-2 dr. 1 dr. 10-20 gr. 2-6 dr. 10-20 gr. 2-4 dr. 5-10 gr. 1 dr. .5-1 dr. 1-3 dr. 1-2 oz. 1 dr. 1-4 dr. 15 gr. 20-60 dp. 15 gr. 7-20 dp. 1 dr. 8gr. 1-2 dr. 1 gr. 10 dp. 3-8 dp. 1-2 dr. .5-1 dr. 1-3 dr. 4gr. 1-2 gr. 2 gr. 1-4 dr. 1-5 dp. 40 gr. 5-20 gr. 1-4 dr. 2-8 gr. 4 gr. H-'A dr. 20 dp. 1-2 gr. 1-8 dr. 1 oz. 20 gr. 5-20 gr. 1-2 gr. 2-4 oz. 4-10 gr. 5-50 gr. 1-2 gr. 5-10 gr. 2-10 gr. 20-50 gr. 1-4 dr. 20-50 dp. INDEX Abbreviations in Prescription Writing 24 Absolute Alcohol 36 Acetate of Lead 131 Acetate of Morphine Ii23 Acetate of Potassium 133 Acetate of Zinc 162 Acid Arcenous 58 Acid Benzoicum 67 Acid, Boric 25 Acid Boricum 25 Acid, Carbolic 26 Acid, Carbolic 26 Acid, Salicylic 28 Acidum Arsenosum 58 Acidumi Carbolicum 26 Acidum Carbolicum Crudum 26 Acidum Salicylicum 28 Aconite, Fluidextract 31 Aconite, Tincture 31 Aconite 29 Aconitum 29 Aconitina 31 Aconitine 31 Actions of Iron 93 Adeps Benzoinatus 66 Administration of Medicines. 20 Aether 33 Aloe Barbadensis 41 Aloe Socotrina 41 Aloes Barbadoes 41 Alcohol 35 Alcohol Absolutum 36 Alkaloidal Salts of Chichona 84 Aloin 42 Aloinum 42 Alum 44 Alum, Dried 44 Alumen 44 Alumen Exsiccatum 44 Alumini Hydroxidum 44 Alumini Sulphas 45 Aluminum Hydroxide 44 Aluminum, Sulphate 45 Ammonia Aromatic Spirit.. 51 Ammonia Liniment 53 Ammonia Muriate 54 Ammonia Spiritus 50 Ammonia Stronger Water... 50 Ammonia Water ''iO Ammonii Benzoas 67 Ammonii Carbonas 52 Ammonii Chloridium 54 Ammonium Acetate Solution 52 Ammonium Benzoate 67 Ammonium Carbonate 52 Amyl Nitrate 46 Anesthesia 79 Anise 47 Anise Oil 47 Anisum 47 Antimonii et Potassii Tartars 48 Antipyrin 40 Antipyrina 49 Anylis Nitris 46 Antimony and Potassium Tartrate 48 Apomorphine Hydrochloride. 127 Apomorphine Hydrochlori- dum 127 Aqua Ammoniac 50 Aqua Ammoniac Fortior.. . 50 Aqua Camphorae 71 Aqua Chloroformi 77 Arcenous Acid 58 Argenti Nitras Fusus 55 Argenti Nitras 54 Argcnte Nitras Mitigatus... 55 Arnica 56 Arnica Root, Extract 56 Arnica Root, Fluidextract... 56 Arnicae 56 Aromatic Fluidextract of Cascara Sagrada 146 Aromatic Spirit Ammonia... 51 Aromatic Tincture of Rhu- barb 147 Arseni Trioxidum 58 Arsenic 57 Arsenic Troxide 58 Arsenic, White 58 Arsenum 57 Art of Prescribing 22-23 Aspidium 61 Atropinae Sulphas 64 Barbadoes Aloes 41 Belladonna Extract 63 Belladonna Leaves 62 Belladonna Liniment 64 Belladonna Ointment 63 Belladonna Radix 63 Belladonna Root 63 Belladonna Tincture 63 Belladonnae Folia 62 Benzoate of Ammonia 67 Benzoate of Soda 67 Benzoic Acid 67 Benzoin 66 Benzoin Tincture 67 Benzoinated Lard 66 Benzoinum 66 Bicarbonate of Potassium. .136 Bicarbonate of Soda 150 Biniodide of Mercury 102 Bi-Chloride of Mercury 99 Bitartrate of Potassium 141 Bitter Wood 143 Black Mustard 148 Blister Beetles 74 Blue Stone 88 Blue Vitriol 88 Boracic Acid 25 Boric Acid 25 Brandy 37 Bromide of Potassium 134 Bromide of Sodium 134 Calamus 68 Calamus Fluidcxtract 68 Calcium Oxide 69 California Buckthorn 145 Calomel 101 Calumba 69 Calumba Fluidextract 70 Calumba Tincture 70 Calx C9 Camphor 71 Camphor Cerate 72 Camphor Liniment 72 Camphor Water 71 Camphora 71 Camphora Monobromata. ... 72 Camphorated Oil 72 Camphorated Tincture of Opium 121 Cantharis 74 Cantharrides 74 Cantharides Tincture 74 Capsicum 75 Capsicum Fluidextract 76 Capsicum Oleoresin 76 Capsicum Tincture 76 Carbolic Acid 26 Carbolic Acid, Crude 26 Carbonate of Ammonia 52 Carbonate of Potassium ... .135 Carron Oil 69 Cascara Sagrada 145 Castor Oil 115 Catechu 97 Caustic Potash 136 Cayenne Pepper 75 Cerate of Camphor 72 Ceratum Camphorae 72 Chalk Mixture 87 Chalk, Prepared 86 Chichona 83 Chichona Alkaloids 84 Ether 81 Chittem Bark 145 Chlorate of Potassium 140 Chloride of Iron 93 Chloride of Mercury, Mild.. 101 Chloride of Sodium 150 Chloride of Zinc 162 Chloroform 77 Chloroform Compared with Chloroform Emulsum 78 Chloroform Liniment 77 Chloroform Spirits 78 Chloroform Water 77 Chloroformum 77 Citrate of Potassium 133 Cocaine Hydrochloride 85 Cocainae Hydrochloridum . . . 85 Cod Liver Oil 114 Codeina 123 Codeine 123 Comparison of Ether with Chloroform 81 Compound Chalk Powder.... 87 Compound Powder of Jalap. 145 Compound Powder Rhubarb. 146 Compound Spirit of Ether... 34 Compound Si)irit of Juniper. 37 Compound Tincture of Ben- zoin 67 Compound Tincture of Gen- tian 99 Compound Tincture of Gam- bir 97 Copper Sulphate 88 Copperas 91 Corrosive Mercuric Chloride 99 Corrosive Sublimate 99 Cosmoline 128 Cotton Seed Oil 115 Cream of Tartar 1 tl Creta Praeparata 86 Cretae Mistura 87 Cretae Pulvis Compositus . . . 87 Croton Oil 118 Crude Carbolic Acid 26 Cupri Sulphas 88 Diacetvlmorphine 123 Dandelion Root . 158 Digitalein 89 Digitalin 89 Digitalis 88 Digitalis Infusion 90 Digitalis Extract 89 Digitalis Fluidextract 90 Digitalis Tincture 90 Digitonin 89 Digitoxin 89 Deodorized Opium 122 Donovan's Solution 59 Dover's Liquid Powder 121 Dover's Powder 121 Doses for Young Animals. 21-22 Dose Table of Valuable Drugs 164 Dried Ferrus Sulphate 91 Emulsion of Chloroform.... 78 Epsom Salts 109 Ether 33 Ether Compared with Chlor- oform, 81 Ether, Pure 33 Extract of Arnica Root 56 Extract of Belladonna Leaves 63 Extract of Digitalis 89 Extract of Gentian 98 Extract of Nux Vomica Ill Extract of Opium 121 Extract of Quassia 143 Extract of Taraxacum 158 Extractum Arnicae Raicis... 56 Extractum Belladonnae Fo- liorum 63 Extractum Digitalis 89 Extractum Gentianae 98 Extractum Nucis Vomicae.. Ill Extractum Opii 121 Extractum Quassiae 143 Extractum Tarxaci 158 Ferri Carbonas Saccharatus. 92 Ferri Chloridum 92 Ferri Sulphas 91 Ferri Sulphas Exsiccatus. . . . 91 Ferric Chloride 92 Ferrous Sulphate 91 Ferrum Reductum 91 Flaxseed 107 Fluidextract of Aconite 31 Fluidextract of Arnica Root. 56 Fluidextract of Belladonna Root 63 Fluidextract Calamus 68 Fluidextract of Calumba 70 Fluidextract of Capsicum. ... 76 Fluidextract of Dip-italis 90 Fluidextract of Gentian 98 Fluidextract of Ginger lb'.) Fluidextract of Hydrastis ... 104 Fluidextract Nux Vomica... Ill Fluidextract of Quassia 143 Fluidextract of Rhamnus Purshiana 145 Fluidextract of Rhubarb. ... 146 Fluidextract of Taraxacum. . 158 Fluidextractum Aconiti 31 Fluidextractum Arnicae Ra- dicis 56 Fluidextractum Belladonnae Radicis 63 Fluidextractum Calumbae... 70 Fluidextractum Calami 68 Fluidextractum Capsici 76 Fluidextractum Digitalis.... 90 Fluidextractum of Gentianae. 98 Fluidextractum Hydrastis . . . 104 Fluidextractum Nucis Vom- icae Ill Fluidextractum Quassiae .... 143 Fluidextractum Rhamni Pur- shiana 146 Fluidextractum Rhamni Pur- shiana Aromaticum 145 Fluidextractum Rhei 146 Fluidextractum Taraxaci 158 Fluidetxractum Zingiberis.. .159 Fowler's Solution 58 Foxglove 88 Gambir 97 Gambir Tincture Comoound. 97 Gamboge 70 Gambogia 70 General Actions of Medicines 5-19 Gentian 98 Gentian Extract 98 Gentian Fluidextract 98 Gentian Tincture Compound. 99 Gentiana 98 Ginger 159 Ginger Fluidextract 150 Ginger Oleoresin 159 Ginger Tincture 159 Glauber's Salts 151 Glycerite of Boroglycerin. . . 25 Glycerite Hydrastis 104 Glyceritum Boroglycerin.... 25 Glyceritum Hydrastis 104 Golden Zeal 103 Goulard's Extract 132 Green Vitriol 91 Gregory's Powder 146 Gum Camphor 71 Heroin 123 Hoffman's Anodyne 34 Hydrate of Turpin 117 Hydrastine Hydrochloride. .104 Hydrastis 103 Hydrastis Fluidextract 104 Hydrastis Glycerite 104 Hydrastis Tincture 104 Hydrargyri Oxiduni Flavum.103 Hydrargyri Chloridum Cor- rosivum 09 Hydrargyri Chloridum Nite.lOl Hydrargyri lodidum Rubrum 102 Hydrastinae Hydrochlori- dum 104 Hydroxide of Potassium .... 136 Hyposulphite of Sodium ... .152 Hydroxide of Aluminum.... 44 Infusion of Digitalis 90 Infusum Digitalis 90 Iodide of Mercury (Red).... 102 Iodide of Potassium 137 Iodine 105 lodum 105 Ipecac and Opium 121 Iron Actions 93 Iron Chloride 92 Iron Reduced 91 Jalap 141 Jalap Compound Powder ... .145 Jalapa Ii4 Jalapa Resina 144 Jalap Resin 144 Lard Benzoinated 66 Laudanum 121 Lead Acetate 131 Lead Oxide 131 Lime 69 Lime Liniment 09 Liniment, Ammonia 52 Liniment Belladonna 64 Liniment Chloroform 77 Liniment Soap 72 Liniment of Turpentine 117 Linimentum Ammoniac .... 52 Linimentum Belladonnae ... 04 Linimentum Calcis 69 Linimentum Camphorae 72 Linimentum Saponis 72 Linimentum Terbinthinae.. . .117 Linseed 107 Linseed Oil 107 Linum 107 Liquid Dover's Powder 121 Liquid Petrolatum 128 Liquor Ammonii Acetatis... 52 Liquor Arseni et Hydrargyri lodidi 59 Liquor Ferri Chloridi 93 Liquor Ferri Subsulphatis. . . 93 Liquor Plumbi Subacetatis. . 132 Liquor Potassii Arsentis.... 58 Liquor Potassii Hydroxidi. .137 Liquor Zinci Chloride 163 Lithii Benzoas 67 Lithium Benzoate 67 Lunar Caustic 55 Male Fern 61 Magnesii Sulphas 109 Magnesium Sulphate 109 Medicines, General Actions. 5-19 Medicines, Administration... 20 Mercury Bi-Chloride 99 Mercury Oxide (Yellow) . . . .103 Methods of Administering Medicines 20 Mild Mercurous Chloride 101 Mitigated Silver Nitrate 55 Monkshood 29 Monobromated Camphor.... 72 Monsels' Solution 93 Morphina 122 Morphine 122 Morphinae Acetas 123 Morphinae Hydrochoridum . 122 Morphinae Sulphas 123 Morphine Acetate 123 Morphine Hydrochloride. . . . 122 Morphine Sulphate 123 Moulded Silver Nitrate 55 Muriate of Ammonia 54 Mustard, Black 148 Mustard Oil 148 Mustard, White 148 Naphthalene 110 Naphthalenum 110 Nitrate of Potassium 139 Nitrate of Silver 54 Niter 139 Nitrite Amyl 46 Nux Vomica 110 Nux Vomica Extract Ill Nux Vomica Fluidextract ... HI Nux Vomica Tincture 112 Oil of Anise 47 Oil Camphorated 72 Oil Carron 69 Oil of Castor 115 Oil of Cod Liver 114 Oil of Cotton Seed 115 Oil of Croton US Oil of Linseed 107 Oil of Mustard 148 Oil, Olive 114 Oil, Sweet 114 Oil of Turpentine, Rectified. 117 Oil of Tar 130 Ointment of Tar 130 Ointment of Zinc Oxide.... 163 Oleum Anisi 47 Oleoresin Aspidium 62 Oleoresin Capsicum 76 Oleoresin Male Fern 62 Oleoresina Aspidi 62 Oleoresina Zingiberis 159 Oleoresina Capsici 76 Olemum Gossipii Seminis. . .115 Oleum Lini 107 Oleum Morrhuae 114 Oleum, Olivae 114 Oleum Pisis Liquidae 130 Oleum Ricini 115 Oleum Sinapis Volatile 148 Oleum Terebinthinae 116 Oleum Terebinthinae Recti- ficatum 117 Olive Oil 114 Oil of Turpentine 116 Olrum Tiglii 118 Opii Pulvis.. 120 Opium 120 Opium Deodoratum 123 Opium Extract 121 Opium and Ipecac 121 Opium, Powdered 120 Opium Tincture 121 Opium Tincture, Campho- rated 121 Opium and Wine 122 Oxide of Lead 131 Oxide of Zinc KU Paregoric 121 Pepper, Cayenne 75 Pepper, Red 75 Permangante of Potash 142 Petrolatum 128 Petrolatum Album 129 Petrolatum Liquidum 128 Petrolatum White 129 Phenol 26 Phenyl Salicylate 29 Phenylis Salicylas 29 Pix Liquida 130 Plumbi Acetas 131 Plumbi Oxidum 131 Potassii Acetas 183 Potassii Citras 133 Potassii Bicarbonas 136 Potassii Bitartras 141 Potassii Bromidum 134 Potassii Carbonas 135 Potassii Chloras 140 Potassii Hydroxium 136 Potassii lodidum 137 Potassii Nitras 139 Potassii Permanganas 142 Potassium Acetate 133 Potassium Bicarbonate 136 Potassium Bitartrate Itl Potassium Bromide 134 Potassium Carbonate 135 Potassium Chlorate 140 Potassium Citrate 133 Potassium Hydroxide 136 Potassium Hydroxide Solu- tion 137 Potassium Iodide 137 Potassium Nitrate 139 Potassium Permangante 142 Precipitated Sulphur 156 Precipitated Zinc Carbonate. 161 Prepared Chalk 86 Prescribing, the Art of 22-23 Prescription Writing, Abbre- viations 24 Prescription Writing Tables. 21 Pulvis Ipecacuanhae et Opii.121 Quaker Button no Qussia 143 Quassia Extract 113 Quassia Fluidextract 1 ts Quassia Tincture 144 Quininae et ureae Hydro- chloridum 85 Quininae Sulphas 84 Quinine Sulphate 84 Quinine and Urea Hydro- chloride 85 Rectified Oil of Turpentine. 117 Red Iodide of Mercury 102 Red Wine 38 Reduced Iron 91 Red Penper 75 Resin of Talap l 14 Resina Jalapa 144 Rhamnus Purshiana 145 Rheum 146 Rhubarb 146 Rhubarb Compound Powder. 146 Rhubarb Fluidextract 146 Rum 38 Saccliarated Ferrous Carbon- ate 92 Sal Ammoniac 54 Salicin 147 Salicinum 147 Salicylas Sodium 28 Salicylic Acid 28 Salol 29 Saltpeter v.iO Salts (Epsom) 109 Salts of Tartar 135 Silver Nitrate 54 Sinapis Alba 148 Sinapis Nigra 148 Soap Liniment 72 Socotrine Aloes 41 Sodii Bromidum 134 Sodii Chloriduni 150 Sodii Salicylas 28 Sodii Sulphas 151 Sodii Thiosulphas 152 Sodium, Salicylas 28 Sodium Benzoate 67 Sodium Bicarbonate 150 Sodium Bromide 134 Sodium Chloride 150 Sodium Sulphate 151 Sodium Thiosulphate 152 Sodoa Benzoas 67 Solution of Ammonia Acetate 52 Solution of Ferri Chloride... 93 Solution of Ferric Subsul- phate 93 Solution of Lead Subacetate. 132 Solution of Potassium Arsen- ite 58 Solution of Potassium Hy- droxide 137 Solution of Zinc Cliloride. . . 163 Spanish Fly 74 Spirit Ammonia 50 Spirit of Camphor 72 Spirit of Chloroform 78 Spirit of Ether 34 Spirit of Glonoin 155 Spirit of Glyceryl Trinitrate. 155 Spirit of Nitrous Ether 153 Spirits Vini Gallici 37 Spiritus Aethcris 34 Spirotus Aetheris Compositus 34 Spiritus Aetheris Nitrosi 153 Spiritus Ammoniac 50 Spiritus Ammoniac Aromati- cus 51 Spiritus Camphorac 72 Spiritus Chloroform 78 Spiritus Frumenti 37 Spiritus Glycerylis Nitratis. . 155 Spiritus Juniperi Compositus 37 Stronger Ammonia Water... 50 Strvchnina 112 Strychnine 112 Strychnine Sulphate 112 Strychninae Sulphas 112 Sulphate of Aluminum 45 Sugar of Lead 131 Sulphate of Atrophine 64 Sulphate of Copper 88 Sulphate of Copper 91 Sulphate of Iron, Dried 91 Sulphate of Magnesium 109 Sulphate of Morphine 123 Sulphate of Quinine 84 Sulphate of Strychnine 112 Sulphate of Zinc 10^0 Sulphate of Sodium 151 Sulphur Flowers ICS Sulphur Lotum 156 Sulphur Ointment 156 Sulphur Precipitatum 156 Sulphur Sublimatum 156 Sulphur Sublimed 156 Sulphur Washed 156 Sweet Flag 68 Sweet Oil 114 Sweet Spirits of Niter 153 Syrupus Ferri lodidi 92 Syrup of Ferrous Iodide.... 92 Tables used in Prescription Writing 21 Tables Regulating the Doses for Young Animals 21-22 Tables of Weights and Measures 21 Tar 130 Tar Oil 130 Tar Ointment 130 Taraxacum 158 Taraxacum Extract 158 Taraxacum Fluidcxtract 158 Tartar Emetic 48 Terebene 117 Terebenum 117 Terpin Hydrate 117 Terpini Hydras 117 Tinctura Aconiti 31 Tinctura Aloes et Myrrhae.. 42 Tinctura Arnicae 56 Tinctura Belladonnae Folio- rum 63 Tinctura Benzoini 67 Tinctura Benzoini Composita 67 Tinctura Cantharidis 74 Tinctura Capsici 76 Tinctura Digitalis 90 Tinctura Calumbae 70 Tinctura Gambir Composita. 97 Tinctura Gentianae Compo- sita 99 Tinctura Hydrastis 104 Tinctura Ipecacuanhae et Opii 121 Tinctura Nucis Vomicae 112 Tinctura Opii 121 Tinctura Opii Camphorata. . 121 Tincture Aconite 31 Tincture of Aloes and Myrrh 42 Tincture of Arnica 56 Tincture of Belladonna Leaves 63 Tincture Benzoin 67 Tincture of Calumba 70 Tincture of Capsicum 76 Tincture Cantharides 74 Tincture of Digitalis 90 Tincture of Ferric Chloride. . 93 Tincture Hydrastis 104 Tincture of Ipecac and Opium 121 Tincture of Nux Vomica. .. .112 Tincture of Opium 121 Tincture Quassiae 144 Tincture Rhei Aromatica. . . .147 Tincture Zingiberis 139 Turpentine 116 Turpentine Liniment 117 Tincturus Ferri Chloridi.... 93 Unguentum Belladonnae .... 63 Unguentum Pisis Liquidae. .130 Unguentum Sulphuris 156 Unguentum Zinci Oxide 162 Vaseline 128 Vinum Album 38 Vinum Opii 122 Vinum Rubrum 38 Vitriol, Blue 88 Vitriol, Green 91 Wand Measures Tables..... 21 Whisky 37 White Mustard 148 White Wine 38 Wine of Opium 122 Wine, Red 38 Wine, White 38 Yellow Mercusic Oxide 103 Zinc Acetate ..162 Zinc Chloride 162 Zinc Chloride Solution 163 Zinc Oxide 161 Zinc Sulphate 160 Zinc Sulphocarbolate 160 Zinci Acetas 152 Zinci Carbonas Praecipitatus.161 Zinci Chloridum 162 Zinci Oxidum 161 Zinci Phenolsulphonas J 60 Zinci Sulphas 160 Zingiber 159 Yj -lir ■■■' -^^^ .,. 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