PRESCRIPTI.ON WRITINa 97 



For example : 



Sodii Sulphatis, uncias duas. 



Translated : 



Take 



Of sodium sulphate, ounces two. 



The Latin noun tmcia (ounce) is in the accusative case, 

 and the adjective duas is also in the accusative, agreeing 

 with uncias. But to write out prescriptions in full, as above, 

 is not customary and would be considered pedantic. 



Again : The Latin names of the ingredients should be 

 written in the accusative case when no noun for weight or 

 measure is employed. For example : 



Pilulas catharticas conipositas duas. 



Translated literally : 



Take 



Pills cathartic compound, two. Or, take two compound 

 cathartic pills. 



Pilulas (pills) is in the accusative, object of the verb 

 recipe. Catharticas, compositas, and duas are adjectives, 

 agreeing with pilulas. We can only write this prescription 

 correctly, without using the accusative case, by abbreviating 

 it as follows : 



Pil. Cath. Co. 11. 



Examples of Prescriptions for Different 

 Preparations. 



TO WRITE A PRESCRIPTION FOR A PILL. 



1. We calculate the number of pills we wish to pre- 

 scribe and then multiply the dose of each ingredient in the 

 pill by that number. We will suppose that we desire to 

 prescribe 30 pills to a dog, containing reduced iron, soco- 

 trine aloes and sulphate of strychnine. The dose of reduced 



