APERIENTS.— ASTRINGENTS. 405 



Very strong purgative mixture : 



16. — Jalap, 10 grains. 



Epsom salts, 2 drachms. 

 Subcarbonate of soda, 10 grains. 

 Infusion of senna, 1 ounce. 

 Tincture of senna, 2 drachms. 

 Tincture of ginger, 1 5 drops. 

 Mix, and give as a drench. For a small dog, give one-half, one-third, or 

 one-quarter, according to sjze. 



A purgative clyster : 



17. — Castor oil, \ ounce. 



Spirit of turpentine, 2 to 3 drachms. 

 Common salt, £ ounce. 

 Gruel, 6 to 8 ounces. 

 Mix all together, and inject carefully per anum. 



ASTRINGENTS 



Produce contraction in all living tissues with which they are 

 placed in apposition, either directly or by means of absorption 

 into the circulation. Of these, opium, gallic acid, alum, bark, 

 catechu, sulphate of zinc, nitrate of silver, and chloride of zinc 

 are the most commonly used. 



An astringent bolus for diabetes or internal hemorrhage : 



18.— Gallic acid, 3 to 6 grains. 

 Alum, 4 to 7 grains. 

 Purified opium, 1 to 2 grains. 

 Mix with syrup, and give two or three times a day to a large dog. 



or, 



19. — Nitrate of silver, £ grain. 



Crumb of bread, enough to make a small pill. 

 To be given twice a day. 



