Er Zhu Tang

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二术汤 (Two-Atractylodes Decoction)

Source: Wan Bing Hui Chun — Gong Ting-Xian (Ming, 1587)

Last updated October 1, 2026

Not yet clinically reviewed

frozen shoulderbursitistendonitisneuralgia of the forearm

Description

Er Zhu Tang (Two-Atractylodes Decoction), from the Wan Bing Hui Chun (Restoration of Health from the Myriad Diseases) by Gong Ting-Xian.

Actions: Dispels dampness and eliminates phlegm; Opens the channels and collaterals to relieve pain.

Presentation: Musculoskeletal disorders of the arms and shoulders due to phlegm stagnation: aches and pains in the wrist, forearm, elbow, and shoulder; bursitis; tendonitis; and frozen shoulder.

Source: Chen JK, Chen TT. Chinese Herbal Formulas and Applications: Pharmacological Effects & Clinical Research. Art of Medicine Press, 2009, p. 1195.

Composition

Herb Amount % Role Function
Ban Xia
zhi (prepared) with ginger; as printed: Ban Xia (Rhizoma Pinelliae) 6g
6g 16% dries dampness and eliminates phlegm
Tian Nan Xing
as printed: Tian Nan Xing (Rhizoma Arisaematis) 3g
3g 8% dries dampness and eliminates phlegm
Bai Zhu
as printed: Bai Zhu (Rhizoma Atractylodis Macrocephalae) 3g
3g 8% strengthens Spleen and Stomach, dries dampness
Cang Zhu
xi (washed) in rice water and chao (dry-fried); as printed: Cang Zhu (Rhizoma Atractylodis) 4.5g
4.5g 12% strengthens Spleen and Stomach, dries dampness
Fu Ling
as printed: Fu Ling (Poria) 3g
3g 8% strengthens Spleen and Stomach, dries dampness
Qiang Huo
as printed: Qiang Huo (Rhizoma et Radix Notopterygii) 3g
3g 8% dispels wind and dries dampness
Xiang Fu
as printed: Xiang Fu (Rhizoma Cyperi) 3g
3g 8% regulates qi, opens peripheral collaterals, relieves aches
Wei Ling Xian
as printed: Wei Ling Xian (Radix et Rhizoma Clematidis) 3g
3g 8% regulates qi, opens peripheral collaterals, relieves aches
Chen Pi
as printed: Chen Pi (Pericarpium Citri Reticulatae) 3g
3g 8% regulates qi to remove residual phlegm-damp
Huang Qin
zhi (prepared) with liquor; as printed: Huang Qin (Radix Scutellariae) 3g
3g 8% clears damp-heat, reduces swelling and inflammation
Gan Cao
as printed: Gan Cao (Radix et Rhizoma Glycyrrhizae) 3g
3g 8% harmonizes the herbs

Energetics dose-weighted

The formula's overall nature, taste balance and channel reach, weighted by each herb's dose. Classical formulas often pair warm and cool herbs on purpose, so a net figure summarises the mix — it doesn't describe every herb in it.

Nature

Cold Cool Neutral Warm Hot

Net slightly warm (+0.52)

From 100% of the weighed grams.

cold neutral warm

Grams by band: cold 8%, neutral 24%, warm 68%.

Small but decisive: Huang Qin 3g (cold, 8% of the grams). Dose weighting nearly cancels a herb this small, but it may be what the formula is for.

Taste

pungent sweet bitter salty bland
  • pungent 41%
  • sweet 19%
  • bitter 33%
  • salty 4%
  • bland 4%

From 100% of the weighed grams.

Channels reached

  • Spleen 84%
  • Lung 56%
  • Stomach 52%
  • Liver 28%
  • Heart 24%
  • Kidney 16%

Share of the grams entering each channel, from 100% of the weighed grams.

Dose-weighted from each herb's recorded nature, taste and channels (missing values are left out, never counted as neutral). It describes the composition — it is not a recommendation.

Compare side by side with Liu Shen San →

Preparation

Cook with Sheng Jiang; take strained, warm. (Sheng Jiang redirects Stomach qi downward and reduces Ban Xia toxicity.)

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Similar Formulas by composition

Match score combines dosage-weighted composition (cosine, 70%) with shared-herb overlap (Jaccard, 30%).

Traditional formula information is for educational purposes only. Herbal formulas should be prescribed by a qualified practitioner — dosages and combinations are individualized and can interact with medications.

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