RED CINCHONA 455 



Infusum Cinchonce. Infusion of Cinchona. (U. S. P.) 



Made by percolation of cinchona, 60 ; with aromatic sulphuric 

 acid, 10 ; and water to make 1000. 



Dose.— H., Oi. (500.) ; D., 3 ii-iv. (8.-15.). 



Infusum CinchoncB Acidum. (B. P.) 

 Dose.— H., Oi. (500.); D., 3 ii.-iv. (8.-15.). 



Tinctura Cinchonce. Tincture of Cinchona. (U. S. & B. P.) 



Made by maceration and percolation of cinchona, 200 ; with 

 glycerin, 75; and alcohol and water a sufficient quantity to make 1000. 

 (U.S. P.) 



Dose.— H., §i.-ii. (30.-60.); D., 3 ss.-ii. (2.-8.). 



Cinchona Kubra. Red Cinchona. 



Cinchonae rubrge cortex, B. P. The bark of Cinchona 

 succirubra Pavon (nat. ord. Rubiacese), containing not less 

 than 5 per cent, of its peculiar alkaloids. 



Habitat — Ecuador, west of Chimborazo. 



Description. — In quills or incurved pieces, varying in 

 length, and from 2 to 4 or 5 Mm. thick ; the outer surface 

 covered with a grayish-brown cork, more or less rough from 

 warts and longitudinal, watery ridges, and from few, mostly 

 short, transverse fissures ; inner surface more or less deep 

 reddish-brown and distinctly striate ; fracture short-fibrous 

 in the inner layer; powder reddish-brown; odor slight; 

 taste bitter and astringent. 



Constituents. — Same as cinchona. 



Dose. — Same as cinchona. 



PREPARATION. 



Tinctura Cinchonce Composita. Compound Tincture of Cinchona. 

 (U. S. &B. P.) 



Made by maceration and percolation of red cinchona, 100 ; bitter 

 orange peel, 80 ; serpentaria, 20 ; with glycerin, 75 ; and alcohol and 

 water to make 1000. (U. S. P.) 



Dose.— H., ^ ii-iv. (60.-120.); D., 3 ss.-iv. (2.-15.) 



