QUASSIA. ,219 



Composition. The active principle of quassia is quassin* 

 Ci H 12 3 , a white crystalline, neutral bitter principle. Quassia 

 contains no tannin. 



Preparations. 



1. Extractum Quassia. Aqueous. 48 in 1. Dose, 3 to 5 gr. 



2. Infusum Quassiae. 1 in 80 of cold water. Dose, 1 to 2 fl.oz. 



3. Tiactura Quassia. 1 in 27. Dose, 1 to 2 fl.dr. 



ACTION AND USES. 



Quassia is a pure or simple bitter, and possesses the various 

 properties fully described under Calumbce Radix. It is very 

 extensively used. The special points to be noted respecting 

 it are : (1) that its preparations contain no tannin, and may be 

 combined with salts of iron ; (2) that it is entirely devoid of 

 flavour, and intensely bitter, i.e. less agreeable than gentian 

 and chiretta ; and (3) that the infusion is an excellent anthel- 

 mintic enema. 



CELASTEACE^E. 



Euonymus WAHOO. (Not Officinal. ) The bark 

 of Euonynms atropurpureus. 



Characters. Quilled or curved pieces ; ash-grey with 

 blackish patches without ; whitish within ; nearly inodorous ; 

 sweetish, somewhat bitter, and acrid. 



Composition. Euonymus contains euonvmin. an un- 

 crystallisable intensely bitter principle, various resins, and 

 o.Jixed oil. 



Non-officinal Preparations. 

 Extractum Euonymi (U. S. P). Dose, 1 to 5 gr. 



jnymin. An eclectic preparation, consisting of the resins 

 " fixed oil. Dose, 1 to 5 gr. 



ACTION AND USES. 



Euonymin is an hepatic stimulant, direct cholagogue, 

 and mild cathartic ; the latter effect being but little marked 

 unless other purgatives be combined. It is used in constipa- 

 tion and hepatic derangements. 



Rliamni SIICCMS BUCKTHORN JUICE. The re- 

 cently expressed juice of the ripe berries of common 

 Buckthorn, Khamnus catharticus. a native of Britain. 



