Bai San
Star白散 (White Powder)
Source: Discussion of Cold Damage (c. 220)
Last updated October 1, 2026
Description
Bai San (White Powder), from Discussion of Cold Damage (c. 220).
Associated formula of San Wu Bei Ji Wan.
Actions: Warmly drains downward; Expels water; Transforms phlegm; Disperses clumping
Usage: Cold-phlegm with cold excess clumping in the chest: extreme fullness and hardness in the chest (possibly to lower abdomen), constipation, coughing up turbid fishy-smelling sputum; less harsh than the principal formula and focused on the chest.
Category: Formulas that Warm and Purge.
Source: Scheid V, Bensky D, Ellis A, Barolet R. Chinese Herbal Medicine: Formulas & Strategies, 2nd ed. Eastland Press, 2009, p. 76.
Preparation
Powder; take 0.5-1.0g with warm water; warm rice gruel if no diarrhea results, cold rice gruel if diarrhea will not stop.
Traditional formula information is for educational purposes only. Herbal formulas should be prescribed by a qualified practitioner — dosages and combinations are individualized and can interact with medications.
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