Zi Wan Tang
Star紫菀汤 (Aster Decoction)
Source: Yi Fang Ji Jie — Wang Ang (Qing, 1682)
Last updated October 1, 2026
Description
Zi Wan Tang (Aster Decoction), from the Yi Fang Ji Jie (Analytical Collection of Medical Formulas) by Wang Ang.
Actions: Clears heat and dissolves phlegm; Relieves cough; Protects the Lung.
Presentation: Chronic cough caused by Lung heat and yin deficiency: chronic cough, excess phlegm, fever due to overexertion, lung abscesses, and blood in the sputum.
Source: Chen JK, Chen TT. Chinese Herbal Formulas and Applications: Pharmacological Effects & Clinical Research. Art of Medicine Press, 2009, p. 1229.
Preparation
Coarse powder cooked with Sheng Jiang in water; take strained, warm. The source text does not specify doses.
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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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