San Hua Tang
Star三化汤 (Three-Transformation Decoction)
Source: Collection of Writings on the Mechanism of Disease, Suitability of Qi, and the Safeguarding of Life as Discussed in Basic Questions (1186)
Last updated October 1, 2026
Description
San Hua Tang (Three-Transformation Decoction), from Collection of Writings on the Mechanism of Disease, Suitability of Qi, and the Safeguarding of Life as Discussed in Basic Questions (1186).
Associated formula of Da Cheng Qi Tang.
Actions: Unblocks the bowels; Dispels wind
Usage: Wind-stroke entering the Intestines with overwhelming heat: constipation and urinary blockage, yang brightness-type mania, delirious speech; now mainly wind-stroke with constipation and abdominal fullness.
Category: Formulas that Purge Heat Accumulation.
Source: Scheid V, Bensky D, Ellis A, Barolet R. Chinese Herbal Medicine: Formulas & Strategies, 2nd ed. Eastland Press, 2009, p. 68.
Composition
Preparation
Equal amounts powdered; decoct 9g in 3 cups of water to half and take over the day to produce a slight bowel movement and urination.
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Formula family
Each entry reads as the larger formula written out: “+” adds its other catalogue cores, then the herbs none of them hold. A catalogue formula counts as a core only when at least 80% of its herbs are present, no more than 1 is absent, and the absent herb is not its chief.
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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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