Shui Huang Yang Mu (Radix Polygalae Caudatae)
The drug is the dried root of Polygala caudata Rehd. et Wils. (Family Polygalaceae),growing in scrubs, and distributed in Hubei, Guangdong, Guangxi, Guizhou, Sichuan and Yunnan of China.
Root and stem contain flavonoid glycosides, saponin, tannin, coumarone, resin, etc.
The Effect of Shui Huang Yang Mu
Root is used to relieve cough, prevent asthma, clear away heat, promote diuresis and treat stranguria, for the treatment of cough, bronchitis, asthma, icterohepatitis, hematuria, etc.
Dosage and Administrations
Decoct 15~30 g.