INTRODUCTION. 7 



gar in water or in aqueous liquids, and are classed 

 as simple, medicated, and flavored. 



Tincture, tinctures, are alcoholic solutions of 

 medicinal substances, all of them being from 7ion- 

 volatile substances, excepting tincture of iodine. 

 Tinctures are prepared by percolation, maceration, 

 solution, or dilution, the menstrua used being alcohol 

 or diluted alcohol of various strengths, and in some 

 cases the aromatic spirit of ammonia is used. 



Unguexta, ointments, are soft, fatty mixtures of 

 medicinal agents with a basis of lard, petrolatum, or 

 fixed oils, and are intended for application to the 

 skin b}^ inunction. (Unguentum simplex is lard 80 

 and yellow wax 20 parts.) 



Vina, wines, are a class of tinctures, and differ 

 from these only in so far that the menstruum employed 

 is white wine of a definite alcoholic percentage. 



Unofficial Preparations. 



Bolus, bolus or ball, is a solid preparation larger 

 than a pill, to be given at one dose. 



BOUGIA, bougies or pencils, are urethral or uterine 

 suppositories, and are made in such shape as to be 

 readily introduced into these canals. The basis is 

 usually a compound of gelatin 3 and glycerin 1 

 part, melted together. 



Capsule, capsules, are short tubes of gelatin of 

 such sizes that one will slip over the other, and are 

 used as a means of administering solids or even 

 liquids. 



\ 



