Yi Huang Tang
Star易黄汤 (Change the Yellow [Discharge] Decoction)
Source: Fu Qing Zhu Nu Ke — Fu Shan (Qing, 1826, but written in 17th century)
Last updated October 1, 2026
Description
Yi Huang Tang (Change the Yellow [Discharge] Decoction), from the Fu Qing Zhu Nu Ke (Women's Diseases According to Fu Qing-Zhu) by Fu Shan — a variation of Wan Dai Tang.
Actions: Strengthens the Spleen; Dries dampness; Clears heat; Stops leukorrhea.
Presentation: Spleen deficiency with damp-heat: sticky, foul-smelling yellow or white vaginal discharge, weak knees and lower back.
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
chao (dry-fried); as printed: Shan Yao, chao (dry-fried) (Rhizoma Dioscoreae) 30g
|
30g | 43.48% | Jun (Chief) | — |
|
Qian Shi
chao (dry-fried); as printed: Qian Shi, chao (dry-fried) (Semen Euryales) 30g
|
30g | 43.48% | Jun (Chief) | — |
|
Bai Guo
fen sui (pulverized); printed dose 10 kernels (no single modern dose); as printed: Bai Guo, fen sui (pulverized) (Semen Ginkgo) 10 kernels
|
g | — | Chen (Deputy) | — |
|
Huang Bai
chao (dry-fried) with salted water; as printed: Huang Bo, chao (dry-fried) with salted water (Cortex Phellodendri Chinensis) 6g
|
6g | 8.7% | Zuo (Assistant) | — |
|
Che Qian Zi
chao (dry-fried) with liquor; as printed: Che Qian Zi, chao (dry-fried) with liquor (Semen Plantaginis) 3g
|
3g | 4.35% | Zuo (Assistant) | — |
Dui Yao — Core Herb Pairs
The classical two-herb combinations at the heart of this formula, as recorded on the herbs' own pages — each pair has an action neither herb has alone.
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 (-0.26)
From 100% of the weighed grams.
Grams by band: cold 13%, neutral 87%.
Small but decisive: Huang Bai 6g (cold, 9% of the grams), Che Qian Zi 3g (cold, 4% of the grams). Dose weighting nearly cancels a herb this small, but it may be what the formula is for.
Taste
- sweet 89%
- bitter 9%
- bland 2%
From 100% of the weighed grams.
Channels reached
- Kidney 100%
- Spleen 87%
- Lung 48%
- Bladder 13%
- Large intestine 9%
- Liver 4%
Share of the grams entering each channel, from 100% of the weighed grams.
1 herb without a dose in grams, so left out of every figure above: Bai Guo.
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
Formulas that share herbs with this one — the closer to the centre, the stronger the match. Click a node to explore.
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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