CASCARILLA. 325 



Preparations. 



Extraction Mezerei JSthereum. 8 gr. to 1 fl.oz. 

 From Extractum Mezerei JEthereum is prepared : 

 Linimentum Sinapis Composituin. 



Mezerewn is also an ingredient of Decoctum Sarsse Composi- 

 tuin. 60 gr. in 1 pint. 



ACTION AND USES. 



Mezereon is a powerful local irritant, like cantharis or 

 mustard, causing vesication. Internally it is a stimulant and 

 diaphoretic ; it is in large doses an irritant poison. It is not em- 

 ployed alone, the ethereal extract being an ingredient of 

 Linimentum Sinapis Compositum, and the internal use of the 

 drug confined to Decoctum Sarsae Compositum as an alterative, 

 in syphilis, chronic rheumatism, and skin diseases. 



EUPHOKBIACE^;. 



Cascarillae Cortex CASCARILLA BARK. The 

 bark of Croton Eluteria. From the Bahama Islands. 



Characters. In quills, two or three inches in length, and 

 from two to five lines in diameter, dull hrown, but more or less 

 coated with white crustaceous lichens; breaks with a short 

 resinous fracture ; is warm and bitter to the taste ; and emits a 

 fragrant odour when burned. 



Substance resembling Cascarilla : Pale Cinchona Bark, which 

 is less white, smooth, and small. 



Composition. Cascarilla contains a complex mixture of 

 aromatic oils and resin, a crystalline bitter principle, cascarillin, 

 and some tannin, etc. 



Incompatibks. Lime-water, metallic salts, mineral acids. 



Preparations. 



1. Infusum Cascarill^. 1 in 10. Dose, 1 to 2 fl.oz. 



2. Tinctura Cascarillas. 1 in 8. Dose, % to 2 fl.dr. 



ACTION AND USES. 



Cascarilla acts in virtue of the aromatic oils and the bitter 

 principle which it contains. It is a pleasant and useful 

 aromatic bitter stomachic, but is somewhat difficult to dis- 

 pense, as the infusion readily decomposes, and the resin sepa- 

 rates from the tincture when prescribed with acids. 



