Botanic Remedies 307 



babe. The combination of senna and cascara is 

 a good laxative for a pregnant woman. Senna is 

 apt to aggravate hemorrhoids. 



DOSAGE. Average dose of the leaves, 60 grains; 

 fl., 30 minims; syrup, 1 nuidrachm; confection, 60 

 grains. Senna enters into many formulae. 



Several synthetic purgatives, such as "purgatin" 

 and "exodin" are based on the anthraquinone 

 nucleus, the more prominent being PHENOLPH- 

 THALEIN, made official in the U. S. P. IX. The 

 dose is 2 to 6 grains; average 2^ grains. 



SERPENT ARIA 



VIRGINIA SNAKEROOT, Aristolochia serpentaria and 

 A. reticulata. Official in England, Japan, Mexico, 

 and the U. S. This drug is classed among the simple 

 bitters. See "Gentian." The dose of the tr. (N. F.) 

 is 30 to 60 minims; fl., 5 to 15 minims. The drug 

 has some reputation as a mild diaphoretic and ex- 

 pectorant. In hot infusion, or the tr. or fl. added 

 to any hot drink, I have found it quite useful in 

 the beginning of a "coZrf," or suppressed secretion 

 due to a "cold." Also it prepares the system for 

 quinine. 



SINAPIS 



WHITE MUSTARD, Sinapis alba, is official in the 

 U. S. and a few other countries. JAPANESE MUS- 

 TARD, S. cernua, is official in Japan. BLACK MUS- 

 TARD, S. nigra, is very generally official. It was 

 formerly known as Brassica nigra in the U. S. P. 

 The official VOLATILE OIL OF MUSTARD is derived 

 from this plant, the seeds being used. RAPESEED 

 OIL is also derived from a species of brassica; it is 

 a fixed oil not official in the U. S. 



