106 PEESORIPTION WKITINa 



I 

 We may now write our prescription as follows : 



Quininss sulphatis 3 v. 3i. 



Acidi sulphurici diluti Q. S. 



Spiritus setheris nitrosi ad Oi. 



Misce. 



(Furnish ^ i. bottle for measure). 

 Signa. Small bottleful three times daily in half a pint of water. 



John Smith, 

 Abbreviated : 



Quin. sulph 3 v. 3i. 



Acid, sulphurici dil Q. S. 



Spts. BBther. nitrosi ad Oi. 



M. 



S. (as above). 



"We will write a prescription for a mixture containing 

 12 doses of chloral and potassium bromide for a dog. The 

 quantity of the mixture given at each dose will be a tea- 

 spoonful. Now, there are six teaspoonfuls in one ounce. 

 We will order a 2-ounce bottle, which will, therefore, hold 

 12 doses of a teaspoonful each. The dose of chloral is gr.v. 

 5 X 12 = gr.GO, or 3 i- The dose of potassium bromide is 

 gr.x. 10 X 12 = gr.l20, or 3 ii. Then we will order enough 

 water to fill the bottle. The Latin for chloral is chloral, 

 genitive chloral-is, of chloral ; Latin for potassium bromide 

 is potassium, genitive potassi-i, of potassium ; bromidum, 

 genitive bromid-i, of bromide ; Latin for water is aqiia, 

 genitive aqu-ce, of water. 



9 ■ 



Chloralis 3 i. 



Potassii bromidi 3 ii. 



Aquae ad | ii. 



M. 

 Signa. Teas, in 1 tablespoonful of water every 3 hours. 



John Smith. 



A drench is a mixture which is given the horse in one 

 dose. We will write a prescription for a horse, containing 

 ether, chloroform and laudanum, to be administered as a 

 drench. The Latin for ether is cether, genitive cefAer-is, of ether; 



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