Xiao Yao San
逍遥散 (Xiao Yao San)
Source: Tai Ping Hui Min He Ji Ju Fang (Song, 1107)
Description
Xiao Yao San (Free and Easy Wanderer Powder) is the most widely used formula for Liver Qi stagnation with Spleen deficiency and Blood deficiency. When the Liver's free-flowing function is impaired through emotional stress or overwork, Qi becomes stagnant and the Spleen is invaded. The formula simultaneously spreads Liver Qi, nourishes Blood, strengthens Spleen, and harmonizes the middle burner.
Composition
| Herb | Amount | % | Role | Function |
|---|---|---|---|---|
| Dang Gui | 9g | 15% | Chen (Deputy) | Nourishes Liver Blood, harmonizes Blood, regulates menstruation. |
| Bai Shao | 9g | 15% | Chen (Deputy) | Nourishes Blood, softens Liver, relieves pain. |
| Bai Zhu | 9g | 15% | Zuo (Assistant) | Tonifies Spleen Qi, prevents Liver invading Spleen. |
| Fu Ling | 9g | 15% | Zuo (Assistant) | Drains dampness, calms spirit, supports Spleen. |
| Sheng Jiang | 9g | 15% | Zuo (Assistant) | Warms middle, harmonizes Stomach. |
| Gan Cao | 6g | 10% | Shi (Envoy) | Tonifies Qi, harmonizes all herbs. |
| Chai Hu | 9g | 15% | Jun (Chief) | Spreads Liver Qi, resolves depression, harmonizes Liver and Gallbladder. |
Total weight: 69g
Preparation
Originally as powder; now commonly taken as decoction, pills, or granules. Decoct in water 25 minutes if making decoction.
Dosage
Powder/granules: 6–9g 2–3x/day. Decoction: 1 dose/day. Widely used long-term for chronic Liver Qi stagnation.
Similar Formulas by composition
Match score combines dosage-weighted composition (cosine, 70%) with shared-herb overlap (Jaccard, 30%).