Ròu Dòu Kòu (肉豆蔻) — Nutmeg Seed

On this page

1. Overview
2. Properties
3. Actions and indications
4. Key formulas
5. Incompatibilities
6. Cautions
7. Treatment at my clinic

1. Overview

Ròu Dòu Kòu (肉豆蔻) — Myristica fragrans seed (nutmeg) — is one of the principal astringent herbs that warms the Spleen and binds the Intestines. Its pungent warmth disperses interior Cold in the Middle Jiao while its astringent quality holds the bowels and stops chronic diarrhoea. It is the key herb in Si Shen Wan (Four Miracle Pill), the classical formula for early-morning “cock-crow” diarrhoea from Spleen-Kidney Yang deficiency. The herb must be prepared (wei, paper-baked) before use, which reduces its volatile oil content and renders it suitable for medicinal use.

2. Properties

3. Actions and indications

Principal actions

1. Warms the Middle Jiao and binds the Intestines
2. Stops chronic diarrhoea
3. Moves Qi and stops pain

Indications

1. Chronic diarrhoea from Spleen and Kidney Yang deficiency — particularly early-morning “cock-crow” diarrhoea
2. Abdominal distension and pain from Cold in the Spleen and Stomach
3. Reduced appetite and nausea from Cold-pattern digestive weakness
4. Chronic functional diarrhoea unresponsive to Spleen-tonifying formulas alone
5. Post-illness intestinal slippage with watery stools

4. Key formulas containing Ròu Dòu Kòu

• Si Shen Wan — Spleen-Kidney Yang deficiency with early-morning diarrhoea

5. Incompatibilities

Ròu Dòu Kòu (肉豆蔻) Nutmeg Seed is not listed in either of the two classical incompatibility texts — Shi Ba Fan (Eighteen Antagonisms) or Shi Jiu Wei (Nineteen Mutual Inhibitions). As with every Chinese herb it should be prescribed only as part of a balanced formula by a registered Chinese herbalist (RCHM), who will check for interactions with any other herbs and prescription medications you are taking.

6. Cautions

Must be prepared (paper-baked) before use. Raw nutmeg contains myristicin, which is hallucinogenic and toxic in large doses. Standard Chinese clinical doses (3–9 g of the prepared herb) are safe; doses above 30 g of raw nutmeg can cause serious toxicity. Contraindicated in damp-heat patterns and dysenteric diarrhoea. Always consult a qualified Chinese herbalist registered with the RCHM.

Pattern contraindications

Contraindicated in Excess patterns with retained pathogens — astringing while a pathogen is still active can lock it in. Use only once the active pathogen has been cleared and the residual deficiency is the dominant pattern.

Modern drug interactions

Wu Wei Zi is a notable CYP3A4 inhibitor — it can raise levels of statins, ciclosporin, tacrolimus and many other drugs. Tell your GP if you take prescription medication before starting a formula containing Wu Wei Zi.

7. Treatment at my clinic

I see patients at my clinic in Wokingham, Berkshire. Online consultations are available. Return to the Chinese herb directory.

Prefer to be treated from home? Chinese herbal medicine online consultations are available throughout the UK and worldwide. After a full video consultation, Dr (TCM) Attilio D'Alberto formulates a bespoke herbal prescription and posts your Chinese herbs directly to your door.