Si Wu Tang
Star四物汤 (Four Substances Decoction)
Source: Tai Ping Hui Min He Ji Ju Fang (Song, 1107)
Last updated July 22, 2026
Description
Si Wu Tang (Four Substances Decoction) is the foundational formula for nourishing and invigorating Blood. Shu Di Huang and Dang Gui nourish Blood while Chuan Xiong moves Qi and Blood to prevent stagnation. Bai Shao softens the Liver and relieves pain. This formula underlies most gynecological Blood-nourishing formulas in TCM.
Composition
| Herb | Amount | % | Role | Function |
|---|---|---|---|---|
| Shu Di Huang | 12g | 33.33% | Jun (Chief) | Nourishes Blood and enriches Essence as primary tonic. |
| Dang Gui | 9g | 25% | Chen (Deputy) | Tonifies Blood, invigorates Blood, regulates menstruation. |
| Bai Shao | 9g | 25% | Chen (Deputy) | Nourishes Blood, softens Liver, alleviates pain. |
| Chuan Xiong | 6g | 16.67% | Zuo (Assistant) | Invigorates Blood, promotes Qi movement, prevents stagnation. |
Total weight: 36g
Preparation
Decoct in water for 30 minutes. Take warm in 2 doses/day, ideally before meals.
Dosage
Decoction: 1 dose/day. Pills: 6–9g twice daily.
Conditions Addressed
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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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