Huo Xiang Zheng Qi San
Star藿香正气散 (Agastache Powder to Rectify the Qi)
Source: Tai Ping Hui Min He Ji Ju Fang (Song, 1107)
Last updated July 22, 2026
Description
Huo Xiang Zheng Qi San (Agastache Powder to Rectify the Qi) releases the exterior, transforms dampness, regulates Qi, and harmonizes the middle. It treats the simultaneous presence of exterior Wind-Cold and interior damp stagnation — a pattern common in summer colds. Widely used in China for acute gastroenteritis, food poisoning, motion sickness, and summer dampness conditions.
Composition
| Herb | Amount | % | Role | Function |
|---|---|---|---|---|
| Huo Xiang | 9g | 12% | Jun (Chief) | Releases the exterior, transforms dampness, harmonizes the middle, stops vomiting |
| Zi Su Ye | 6g | 8% | Chen (Deputy) | Releases the exterior and moves qi, aids Huo Xiang |
| Bai Zhi | 6g | 8% | Chen (Deputy) | Releases the exterior and scatters wind-cold-damp |
| Ban Xia | 6g | 8% | Zuo (Assistant) | Dries dampness, harmonizes the Stomach, stops vomiting |
| Chen Pi | 6g | 8% | Zuo (Assistant) | Regulates qi and dries dampness |
| Bai Zhu | 6g | 8% | Zuo (Assistant) | Strengthens the Spleen and dries dampness |
| Fu Ling | 6g | 8% | Zuo (Assistant) | Strengthens the Spleen and leaches dampness |
| Hou Po | 6g | 8% | Zuo (Assistant) | Moves qi, dries dampness, relieves fullness and distention |
| Da Fu Pi | 6g | 8% | Zuo (Assistant) | Moves qi and promotes water metabolism |
| Jie Geng | 6g | 8% | Zuo (Assistant) | Opens Lung qi and facilitates the chest |
| Gan Cao | 3g | 4% | Shi (Envoy) | Harmonizes the formula |
| Sheng Jiang | 3g | 4% | Shi (Envoy) | Harmonizes the Stomach and stops vomiting |
| Da Zao | 6g | 8% | Shi (Envoy) | Harmonizes the middle burner |
Total weight: 87g
Preparation
Available as powder, pills, or oral liquid. As decoction: simmer 15–20 minutes and take warm.
Dosage
Powder: 6–9g 2–3x/day. Oral liquid (Huo Xiang Zheng Qi Ye): 5–10mL per dose. Take warm for chills.
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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