482 VEGETABLE DEUGS 



QoiNma; Valebas. Quinine Valerate. 

 C,oH,,N,0 AHxoO, + HA (U.S.&B.P.) 



Derivation. — Made by decomposition of quinine sulphate 

 with ammonia, followed by the immediate action of valerianic 

 acid, and crystallization from a cold solution. 



Properties. — White, or nearly white, pearly, lustrous 

 triclinic crystals, having a slight odor of valerianic acid, and 

 a bitter taste. Permanent in the air. Soluble in 100 parts 

 of cold water, and in 5 parts of alcohol ; in 40 parts of 

 boiling water, and in 1 part of alcohol. 



Dose. — D., gr.i.-ii. (.06-.12). Three times daily as tonic. 



QxjiNiNa; BiMURiATis Caebamas. Double Muriate of Quinine 

 and Urea. (Non-official.) 



Very soluble and contains about 61 per cent, of quinine. 

 Dose. — Same as quinine sulphate, but used suboutane- 

 ously in 50 per cent, aqueous solution. 



Chinoidinum oe Quinoidinum. Chinoidine or Quinoidine. 



Brown, resinous mass, containing mixture of quinidine, 

 cinchonine and cinchonidine. A cheap substitute for quinine 

 sulphate. 



Dose. — Three or four times that of quinine sulphate. 



QuiNiDiNiE Sulphas. Quinidine Sulphate. (CjoHj^NAa)! 

 H,SO, + 2 H,0. (U. S. P.) 



The neutral sulphate of an alkaloid obtained from the 

 bark of several species of cinchona (nat. ord. Rubiacese). 



Syncmym. — Sulfate de quinidine, Fr. ; schwefelsaures 

 chinidin (cinchinin), G. 



Derivation. — Recovered from quinoidine, or from the 

 mother liquors after the crystallization of quinine sulphate, 

 by the same method as for quinine. 



Properties. — White, silky needles, odorless, and having 



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