130 Materia Medica. 
which usually takes two or three applications. It may 
then be omitted for a week. 
Emetics.—Emetics are sometimes required for the 
dog, though not so often as is commonly supposed. 
Vomiting is a natural process in that animal, and seldom 
wants provoking; indeed, if emetics are often had re- 
course to, his stomach becomes so irritable that neither 
medicine nor food will remain on it. Hence their 
administration should be carefully kept within the bounds 
of absolute necessity. 
Under proper regulations emetics have a useful place 
in canine medicine. They greatly assist other remedies 
or measures by the facility with which they cause 
rejection of the contents of the stomach, and produce 
a direct sedative effect on the system, which proves 
beneficial in active diseases as pneumonia, hepatitis, 
enteritis, &c. 
Prescriptions.—1. Tartar emetic, $ to 1 gr. ; powdered 
ipecacuanha, 4 to 5 grs. Mix, and dissolve in a little 
water, to be given as a drench, and to be followed by 
2 to 8 oz., of lukewarm water, in a quarter of an hour. 
2. Common Salt Emetic.—A teaspoonful of salt and 
half this quantity of mustard are to be dissolved in half 
a pint of warm water, and given as a drench. 
Expectorants.—Remedies of this class are employed 
to assist or relieve the lungs by promoting discharge 
froin the mucous lining of the air passages, in which office 
they prove eminently useful. They restrain irritation 
and thus remove the cough which it occasions, promote 
tranquillity, affording rest and comfort to jaded spirits, 
and greatly facilitate recovery. 
1. Bolus.—Carbonate of ammonia, finely powdered, 
1drm.; gum asafcetida, 1 drm. ; extract of belladonna, 
12 grains. Pulverise the ammonia and gum separately, 
using to the latter a few drops of spirit of wine, then 
mix and triturate together, finally rubbing in the extract 
with linseed meal andtreacle to form a paste. Divide 
into 12, 18, or 24 pills according to the size of the 
patient. ‘ 
2 Carbonate of ammonia, and carbonate of potash, 
