38 PHARMACY 



After they are rolled, they may be coated with gelatin, sugar, 

 chocolate, keratin, etc. 

 Seven are official : 



Pilulse Aloes Aloes Pills 



Pilulse Asafcetidte Asafoetida Pills 



Pilulse Catharticse Compositae Compound Cathartic Pills 



Pilulte Ferri Carbonatis Blaud's Pills 



Pilulfe Ferri lodidi Iodide of Iron Pills 



Pilulse Phosphori Phosphorus Pills 



Pilulse Ehei Compositse Compound Ehubarb Pills 



TROCHISOI — TROCHES 



These are disc-like masses of medicinal substances, consisting 

 chiefly of medical powders, sugar and mucilage, intended to be 

 slowly dissolved in the mouth. Powerful or disagreeable drugs 

 should not be given in this manner, and it is needless to say that they 

 cannot be used in veterinary medicine. They may be manufactured 

 by massing or compression. In the former case the medicine is 

 combined with some mucilaginous substance with sufficient water to 

 make a mass, and then worked in a mortar to a mass. This is rolled 

 out and then cut with a lozenge cutter. 



By Compression. The manufacture of troches by compression 

 differs from that of tablets only by the size of the mold. Five are 

 official : 



Trochisci Acidi Tannici Troches of Tannic Acid 



Trochisci Ammonii Chloridi Troches of Ammonium Chloride 



Trochisci Cubebfe Troches of Cubebs 



Trochisci Potassii Chloratis Troches of Potassium Chlorate 



Trochisci Sodii Bicarbonatis Troches of Sodium Bicarbonate 



UNGUENTA — OINTMENTS 



Ointments are semisolid preparations in which the medical sub- 

 stances are blended with fatty substances, lard, petrolatum, etc., and 

 soft enough to be applied to the skin by inunction. They are 

 always softer than cerates, which see. They may be prepared by 

 incorporation or fusion. When made by the former method, the 

 medical substance is rubbed vdth the solid fatty matter in a mortar 

 or upon an ointment slab with a spatula. When made by fusion the 

 fatty base is liquefied by gentle heat and the medicine incorporated 

 while liquid or after solidification. Twenty are official. 



Unguentum, a base for other oint- TJnguentum Aquge Eosse 



ments Fnguentum Belladonnse 



Fnguentum Acidi Borici _ TJnguentum Chrysarobini (Ohrysa- 



Unguentum Acidi Tannici robin) 



