Downward-Draining Herbs
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Which of the following herbs expels water through both the urine and the stool, making it a useful herb for edema and ascites due to stagnation of water or dampness?
Harsh Expellants are not used for constipation; they are used to drain severe water accumulation. Qian Niu Zi is a Harsh Expellant.
Source: Bensky, D. (2004). Chinese Herbal Medicine: Materia Medica. Seattle, WA: Eastland Press. p. 249 [Q815]