Wen Pi Tang — Warm the Spleen Decoction

On this page

1. Overview
2. TCM pattern
3. Key herbs
4. Formula actions
5. Conditions treated
6. Comparisons with related formulas
7. Modifications
8. Cautions

Overview

Wen Pi Tang — “Warm the Spleen Decoction” — is a Tang-dynasty formula from Sun Simiao’s Bei Ji Qian Jin Yao Fang (Essential Formulas Worth a Thousand Gold Pieces, c. 652 CE). It addresses the unusual but important pattern of Cold accumulation in the intestines with Yang deficiency — chronic constipation that does not respond to standard purgatives because the underlying problem is Cold and Yang deficiency, not Heat.

The formula is a clever combination of opposites: it uses Da Huang (a strongly cold purgative) alongside Fu Zi (a powerfully warming Yang tonic), Gan Jiang (warming Spleen) and Ren Shen (Qi tonic). The Da Huang clears the cold-stuck accumulation downward; the warming herbs prevent Da Huang from damaging Yang. This principle — combining drainage with warming — is one of the most sophisticated techniques in classical formula construction.

I prescribe Wen Pi Tang as part of bespoke herbal formulas from pharmaceutical-grade granules sourced from Sun Ten in Taiwan.

TCM pattern

Wen Pi Tang is prescribed for Cold accumulation in the intestines with Yang deficiency:

• Chronic constipation — often despite normal diet, fibre and water
• Stools may be difficult to pass even when soft (in deficiency-Cold pattern)
• Cold lower abdomen
• Lower abdominal pain — relieved by warmth and pressure
• Cold extremities
• Aversion to cold, preference for warm foods
• Fatigue, lassitude
• Pale complexion
• Tongue — pale, possibly swollen, white moist coat
• Pulse — deep, slow, possibly wiry

The pattern is common in older adults with constipation, in patients on long-term opioids who have developed cold constipation, in chronic illness, after abdominal surgery, in scleroderma and in those with hypothyroidism.

Key herbs

1. Da Huang (Rheum palmatum) — purgative; clears stuck accumulation
2. Fu Zi (prepared aconite) — warms Kidney Yang and Spleen Yang
3. Gan Jiang (dried ginger) — warms the middle
4. Ren Shen — tonifies Qi
5. Gan Cao — harmonises

Formula actions

1. Warms the Spleen and Kidney Yang
2. Purges Cold accumulation downward
3. Tonifies Qi
4. Resolves chronic Cold constipation

Conditions treated

1. Chronic constipation from Cold and Yang deficiency — the primary indication; see also Chinese medicine for constipation
2. Opioid-induced constipation (alongside conventional management)
3. Constipation in older adults with Yang deficiency picture
4. Constipation after abdominal surgery with Cold pattern
5. Constipation in hypothyroidism — see hypothyroidism
6. Cold abdominal pain with constipation
7. Chronic mesenteric ischaemia presentations (alongside vascular care)
8. Severe Cold-deficiency constipation in chronic illness

Comparisons with related formulas

• Da Cheng Qi Tang — for Heat-pattern constipation with high fever and excess Yang Ming Heat; opposite indication.
• Ma Zi Ren Wan — for dry constipation from Yin deficiency.
• Ji Chuan Jian — for Kidney Yang deficiency constipation in elderly; gentler than Wen Pi Tang.
• San Wu Bei Ji Wan — for acute Cold accumulation; a heroic emergency formula.
• Wu Ren Wan — for dry constipation from Blood and fluid deficiency; gentler.

Modifications

• For prominent cold and Kidney Yang deficiency, increase Fu Zi and add Rou Gui
• For prominent fatigue, increase Ren Shen and add Huang Qi
• For prominent abdominal pain, add Bai Shao and Gan Cao
• For very stuck stool, increase Da Huang or add Mang Xiao (with caution)
• For chronic use, reduce Da Huang and consider combining with Ji Chuan Jian

Cautions

This formula contains Fu Zi (prepared aconite) and should only be prescribed by a qualified Chinese herbalist with experience in toxic herbs.

Not appropriate for Heat-pattern constipation, Yin-deficient constipation or Qi-stagnation constipation. Wrong-pattern use can cause significant adverse effects.

Not appropriate in pregnancy — contains Da Huang and Fu Zi, both contraindicated.

Use cautiously in patients on multiple medications — Da Huang can affect drug absorption; Fu Zi has potential cardiac effects.

Persistent constipation needs medical assessment to exclude bowel obstruction, colorectal pathology and serious underlying disease.

Always consult a qualified Chinese herbalist registered with the RCHM.

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