V 



110 THE ABMY HORSE IN ACCIDENT AND DISEASE. 



system in convalescence from debilitating diseases and general lack 

 of vitality.' Generally given in combination with gentian, iron, and 

 'other tonics. 



OU, linseed. — Laxative (mild purgative). Dose, ^ to 1 quart. 

 Do not use boiled oil. 



Oil, olive. — Generally used as a vehicle in making liniments and 

 oily solutions. 



Oil of tar (pine tar). — Useful for plugging holes and cavities in the 

 hoof after all suppuration has ceased. 



Oil of turpentine. — Diuretic, stimulant, antispasmodic, vermicide, 

 and expectorant. Dose, 1 to 3 ounces diluted with oil. 



Externally it is used in the formation of liniments (see Solution 

 of Ammonia). 



Opium, tincture of (laudanum). — Anodyne, antispasmodic. Checks 

 secretion of mucus membrane. On account of these properties it is 

 a valuable remedy in diarrhea and dysentery. 



Very useful in the treatment of all abdominal pain where there 

 are no symptoms of constipation, but as a rule belladonna and 

 cannabis indica are preferable. Dose, 1 to 2 ounces. 



Externally, opium tincture is used to relieve pain of sprains and 

 bruises. 



A very good anodyne lotion is made as follows : 

 Opium tincture, 4 ounces. 

 Acetate of lead, 2 ounces. 

 Water to make 1 quart. 



Apply every few hours. 



Opium, powdered. — Not used externally. It is used internally for 

 the same purpose as the tincture. Dose, ^ to 2 drams. 



Potassium bromide. — Nerve sedative. Dose, ^ to 2 oimces. In 

 tetanus this medicine can be given in large doses. 



Potassium nitrate (saltpeter). — Alterative, febrifuge, and diuretic. 

 Dose, 1 to 4 drams. In the treatment of laminitis the dose is 2 to 4 

 ounces, repeated three times a day. Externally it makes a good 

 cooling lotion: 



Nitrate potassium (saltpeter), 5 ounces 

 Chloride of ammonia, 5 ounces. 

 Water, 16 ounces. 



Mix and keep the affected parts saturated with this lotion. 



Internally, saltpeter is a most excellent medicine in the treatment 

 of catarrhal and febrile diseases. It is also useful in the treatment of 

 swollen legs. 



Potassium iodide. — Alterative, diuretic, and expectorant. Dose, 2 

 to 4 drams. It is given to promote absorption of enlargements, such 

 as enlarged glands in lymphangitis, and in partial paralysis resulting 

 from injury to the brain or spinal cord. 



