Herb Formulas Notebook

Si Mo Tang

Four Milled Decoction

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Source: Formulas to Aid the Living (1253)
Author: Yan Yong-He

Category: Formulas that Regulate Qi

Pattern: Constraint and clumping of Liver Qi

Key Symptoms: Wheezing and laboured breathing, irritable stifling sensation in the chest and diaphragm, epigastric focal distention and fullness, loss of appetite

Tongue: Often has white coat
Pulse: Wiry

Ren Shen 3-6g
Bing Lang 9g
Chen Xiang 3-6g
Wu Yao 6-9g

In UK Bing Lang must be replaced. Zhi Shi and Yu Li Ren are the standard replacements but unless constipation is a symptom the latter seems inappropriate. Zhi Shi will still direct the Qi downward and if a second herb is needed maybe Gua Lou to open the chest and dissipate accumulation.

Preparation: Decoction.

Actions: Promotes movement of Qi, directs rebellious Qi downwards, expands the chest, dissipates clumping

Contraindications: Long term, significant deficiency of normal Qi

Research Links:
Science Direct
Google Scholar
Journal of Chinese Medicine
American Dragon

Reference Notes: (click to display)

These pages are intended to assist clinicians and are not intended for self-diagnosis or treatment for which a qualified professional should be consulted.