Qing Dai Tang
Star清带汤 (Clear the Discharge Decoction)
Source: Yi Xue Zhong Zhong Can Xi Lu — Zhang Xi-Chun (Republic of China, 1918)
Last updated October 1, 2026
Description
Qing Dai Tang (Clear the Discharge Decoction), from the Yi Xue Zhong Zhong Can Xi Lu (Records of Heart-Felt Experiences in Medicine with Reference to the West) by Zhang Xi-Chun — a variation of Wan Dai Tang.
Actions: Strengthens the Spleen; Stops abnormal vaginal discharge.
Presentation: Red or white, diluted, copious discharge; weak lower back; pale tongue with white coating; fine, moderate and deep pulse.
Source: Chen JK, Chen TT. Chinese Herbal Formulas and Applications: Pharmacological Effects & Clinical Research. Art of Medicine Press, 2009, p. 809.
Composition
| Herb | Amount | % | Role | Function |
|---|---|---|---|---|
|
Shan Yao
as printed: Shan Yao (Rhizoma Dioscoreae) 30g
|
30g | 34.48% | — | |
|
Long Gu
dao (pounded) into fine particles; as printed: Long Gu, dao (pounded) into fine particles (Os Draconis) 18g
|
18g | 20.69% | — | |
|
Mu Li
dao (pounded) into fine particles; as printed: Mu Li, dao (pounded) into fine particles (Concha Ostreae) 18g
|
18g | 20.69% | — | |
|
Hai Piao Xiao
dao (pounded); as printed: Hai Piao Xiao, dao (pounded) (Endoconcha Sepiae) 12g
|
12g
typical 5–10g
|
13.79% | — | |
|
Qian Cao
as printed: Qian Cao (Radix et Rhizoma Rubiae) 9g
|
9g | 10.34% | — |
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
Net slightly cool (-0.28)
From 100% of the weighed grams.
Grams by band: cold 10%, cool 21%, neutral 55%, warm 14%.
Taste
- sweet 55%
- bitter 10%
- salty 35%
From 100% of the weighed grams.
Channels reached
- Kidney 90%
- Liver 66%
- Heart 52%
- Spleen 48%
- Lung 35%
- Gallbladder 21%
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.
Preparation
Prepare as a decoction.
Relationships
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Formula Network
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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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