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Shang Han Lun Formula Modifications

Paul Freedman

Paul Freedman

11 Jan 2026 — 61 min read
Shang Han Lun Formula Modifications

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Choosing Between Bai Zhu and Cang Zhu

Choosing Between Bai Zhu and Cang Zhu

I came across an interesting comment in my book Jin Gui Yao Lue. "At the time of the Jin Gui Yao Lue writing, the two medicinals bai zhu and cang zhu were not differentiated from one another." So, how to choose between Bai zhu Atractylodis macrocephalae rhizome and

By Paul Freedman 18 Jan 2026
Preview of Formula Modifications

Preview of Formula Modifications

Obviously this is a teaser that will motivate you to want to see the whole text. But, for that you need a subscription. A subscription is a way of not only motivating me to keep producing content, but also as a way of thanking me. It is hard work folks.

By Paul Freedman 11 Jan 2026
Reflections on Yang Ming

Reflections on Yang Ming

Naming of Yang ming 阳明 Yang Ming Yang ming is translated as follows ·        阳 (yáng) – yang, sunlight, outward, active ·        明 (míng) – bright, luminous, clear, shining So Yang Ming means Yang that is at its brightest or fullest expression. This does not make much sense considering that Yang ming is associated

By Paul Freedman 04 Jan 2026
Herbal Methods

Herbal Methods

The names of the herbal formulas used in the classic text Shang Han Za Bing Lun are mostly, but not all, named after the herbs used in the formula. For example there is the formula ma huang xi xin fu zi tang. The formula uses the herbs ma huang, xi

By Paul Freedman 28 Dec 2025
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Reflections on Ancient Chinese Medicine for Modern Times