Ma Zi Ren Wan
Star麻子仁丸 (Hemp Seed Pill)
Source: Shang Han Lun — Zhang Zhongjing (Han, 220)
Last updated July 22, 2026
Description
Ma Zi Ren Wan (Hemp Seed Pill) is a mild laxative formula treating constipation from Spleen constraint — where excess Yang Ming heat causes the Spleen's function of transportation to be constrained, resulting in dry stools. Compared to Da Cheng Qi Tang, it is much milder and suitable for chronic constipation in constitutionally drier individuals.
Composition
| Herb | Amount | % | Role | Function |
|---|---|---|---|---|
| Huo Ma Ren | 20g | 29.41% | Jun (Chief) | Moistens the Intestines and unblocks the bowels |
| Xing Ren | 9g | 13.24% | Chen (Deputy) | Directs Lung qi downward and moistens the Intestines |
| Bai Shao | 9g | 13.24% | Chen (Deputy) | Nourishes yin and harmonizes to prevent injury from purgation |
| Da Huang | 12g | 17.65% | Zuo (Assistant) | Drains heat and purges accumulation |
| Zhi Shi | 9g | 13.24% | Zuo (Assistant) | Breaks up stagnant qi and reduces distention |
| Hou Po | 9g | 13.24% | Zuo (Assistant) | Moves qi and eliminates fullness |
Total weight: 84g
Preparation
Available as honey pills. Grind herbs, bind with honey into 9g pills. Take with warm water before sleep.
Dosage
Pills: 6–9g twice daily with warm water. Adjust dose to achieve soft stools. Can be used long-term at lower doses.
Conditions Addressed
Related Formulas
Similar Formulas by composition
Match score combines dosage-weighted composition (cosine, 70%) with shared-herb overlap (Jaccard, 30%).
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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