Biyu San: Jade-Blue Powder to Clear Heat, Drain Dampness, and Promote Diuresis
Biyu San comes from Xuan Ming Fang Lun (Discussion of Xuanshi's Formulas). It consists of Huashi (talc) 6 liang (180 g), Gancao (licorice) 1 liang, and Qingdai (indigo naturalis, enough to give the powder a bluish-green color). Powder finely. Each time take 3 qian (9…
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