338 Botanic Drugs 



in the treatment of chronic pharyngitis, lumbago, 

 myalgia, and catarrhal jaundice. 



YOHIMBINUM 



JOHIMBIN. This drug is nowhere official, but 

 has an extensive literature. The drug is asserted 

 to be a potent aphrodisiac, a sexual stimulant useful 

 in the treatment of neurasthenic impotence. Yohim- 

 bin, the alkaloid, is locally anesthetic. The hydro- 

 chloride of the alkaloid is given in doses of 1-10 

 grain. 



ZEA 



CORN SILK, Zea mays. Was official in the U. S. P 

 VIII, and is noted in the French, Mexican, and 

 Spanish standards. Maizenic acid is the active 

 diuretic agent in corn silk, which is worked green 

 in making the fluidextract. 



A mild but reliable diuretic in full dosage, 1 to 2 

 fluidrachms fl. It is used in the treatment of acute 

 and chronic cystitis, pyelitis, etc., its demulcent 

 properties making it safe and mild in action. An 

 infusion made with boiling water may be used freely. 



ZINGIBER 



GINGER, Zingiber officinalis. Almost universally 

 official. The oleoresin (dose, ^ grain) is the active 

 agent. 



A pleasant carminative, and a stimulant to the 

 digestive system. Used to expel flatus, and in 

 cramps and colic. For this purpose the tr. is given 

 in 10- to 60-minim doses, or the fl. in 15-minim 

 doses. 



The oleoresin is used in purgative pill formulae 



