APERIENTS.— ASTRINGENTS. 347 



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 jper anum. 



ASTRINGENTS 



Produce contraction in all living tissues witli whicli they are 

 placed in apposition, either directly or by means of absorption 

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

 catechu, sulj)hate 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. 

 Puriiied 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. 



Astringent wash for the eyes : 



20. — Sulphate of zinc, 5 to 8 grains. 



Water, 2 ounces. — Mix. 



