Da Ding Feng Zhu — Major Calm Wind Pearl Decoction

On this page

1. Overview
2. TCM pattern
3. Key herbs
4. Formula actions
5. Conditions treated
6. Cautions

What is Da Ding Feng Zhu?

Da Ding Feng Zhu — Major Calm Wind Pearl — is a classical Wen Bing formula by Wu Tang (Wen Bing Tiao Bian, 1798) for severe Yin-deficiency wind. It is used in Chinese herbal medicine for the kind of internal wind that develops after prolonged high fever has consumed Yin and fluids, producing tremor, muscle twitching, weakness and a peeled crimson tongue.

I prescribe Da Ding Feng Zhu as part of bespoke herbal formulas from pharmaceutical-grade granules sourced from Sun Ten in Taiwan.

Da Ding Feng Zhu TCM pattern

Prescribed for Liver wind from Yin and fluid depletion: weakness with low-grade lingering fever, tremor, muscle twitching, fasciculations, palpitations, deafness, dry crimson tongue with little or no coat, and a thin rapid weak pulse.

Key herbs

1. Ji Zi Huang (chicken egg yolk) and Bie Jia (turtle shell) — chief substances; nourish Yin and anchor wind
2. Mu Li, Gui Ban (tortoise plastron) — settle and anchor wind
3. Bai Shao, Mai Men Dong, Sheng Di Huang — nourish Liver and Kidney Yin
4. Huo Ma Ren, Wu Wei Zi, Zhi Gan Cao — assist in nourishing and harmonising

Formula actions

1. Nourishes Yin and generates fluids
2. Extinguishes internal wind
3. Anchors and quietens the Shen

Conditions treated

1. Late-stage warm-disease convalescence with Yin depletion and internal wind
2. Post-meningitis or post-encephalitis with residual tremor and weakness
3. Parkinsonian tremor with marked Yin deficiency features (as adjunctive care)
4. Selected post-stroke presentations with Yin deficiency and twitching
5. Severe perimenopausal Yin-deficient hot flushes with tremor and palpitations

Cautions

Contraindicated in damp-cold patterns and acute exterior conditions. Heavy substances such as turtle shell and tortoise plastron may be sourced from CITES-protected species; modern Sun Ten granules use sustainable substitutes where required. Confirm any restricted ingredient is appropriately sourced before use.

Always consult a qualified Chinese herbalist registered with the Register of Chinese Herbal Medicine (RCHM). Online herbal consultations are available.

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