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Ma Zi Ren Wan

麻子仁丸 (Ma Zi Ren Wan)

Source: Shang Han Lun — Zhang Zhongjing (Han, 220)

Habitual constipationDry hard stoolsConstipation in the elderlyPost-illness constipationConstipation with frequent urination (Spleen constraint pattern)

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.

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.