488 VEGETABLE DRUGS 



urinary organs, stimulating these parts. They are therefore 

 occasionally prescribed in chronic bronchitis, pyelitis and 

 cystitis. The syrup of Tolu is an exceedingly mild prepara- 

 tion, but forms an agreeable vehicle for cough mixtures in 

 canine practice. The balsams may be administered in 

 emulsion rubbed up with either glycerin, mucilage, or white 

 of egg and water. 



Benzoinum. Benzoin. (U. S. & B. P.) 



Synonym. — Resina benzoe, asa dulcis, gum benjamin, 

 E.; benzoin, Fr.; benzoe, G. 



A balsamic resin obtained from Styrax Benzoin Dryander 

 (nat. ord. Styracese). 



Habitat.— Simu, Sumatra, Java and Borneo. 



Properties. — In lumps consisting of agglutinated, yellow- 

 ish-brown tears, which are internally milk-white ; or in the 

 form of a reddish-brown mass, more or less mottled from 

 whitish tears imbedded in it. It is almost v/hoUy soluble in 

 5 parts of moderately warm alcohol, and in solutions of the 

 fixed alkalies. When heated it gives off fumes of benzoic 

 acid. It has an agreeable, balsamic odor, and a slight aroma- 

 tic taste. 



Constituents. — 1, benzoic acid, 12 to 20 per cent. ; 2, cin- 

 namic acid, sometimes ; 3, several resins ; 4, a volatile oil. 



PREPARATIONS. 



Adeps Benzoinatus. Benzoinated Lard. (U. S. & B. P.) 

 Made by melting lard, 1000, with benzoin, 20 ; and straining. 

 (U. S. P.) 



Tinctura Benzoini. Tincture of Benzoin. (U. S. P.) 

 Made by maceration of benzoin, 200, in alcohol ; filtration, and 

 addition of alcohol to make 1000. 



Dose.— H. & C, §1. (30.) ; D., 3 ss.-i. (2.-4.). 



Tinctura Benzoini Coviposita. Compound Tincture of Benzoin. 

 (U. S. & B. P.) 

 Synonym. — Friar's balsam. 



Benzoin, 120 ; purified aloes, 20 ; storax, 80 ; balsam of Tolu, 40 ; 

 alcohol to make 1000. Made by digestion and filtration. (U. S. P.) 



