OLEORESIN/E Oleoresins. 



Are liquid preparations consisting principally of 

 natural oils and resins, extracted from vegetable sub- 

 stances by percolation with stronger ether. 



How do Oleoresins differ from fluid extracts? 



They bear no uniform relation to the drug, and 

 the menstruum used dissolves principles insoluble in 

 alcohol. They are the most concentrated liquid 

 preparations of drugs. 



Give general formula for their preparation. 



Percolate the powdered drug in a cylindrical per- 

 colator provided with a cover and a receptacle suita- 

 ble for volatile liquids, with stronger ether, until 

 exhausted, recovering the greater part of the ether 

 by distillation, and exposing the residue, in a cap- 

 sule, to spontaneous evaporation until the remaining 

 ether has evoperated. 



How many are officinal? Six. 



PILUL/E-Pills. 



What are Pilulae, or Pills? 



Pills are small, solid bodies, of a globular, ovoid, 

 or lenticular shape, which are intended to be swal- 

 lowed, and thereby produce medical action. 



Of what is a pill mass composed? and what is 

 required of it? 



It is composed of ingredients and excipients. It 

 is required that the mass be, I, adhesive ; 2, firm; 

 *$, plastic. 



Give formula for Pil. Cathartic Comp. 



Ext. Colocynth Comp 1 30 



Abstract of Jalap 100 



Calomel 100 



90 



