Er Jia Jian Zheng Qi San
Star二加减正气散 (Two Qi-Rectifying Variant Powder)
Source: Wen Bing Tiao Bian (1798)
Last updated October 1, 2026
Description
Er Jia Jian Zheng Qi San (Two Qi-Rectifying Variant Powder), from Systematic Differentiation of Warm Diseases (Wen Bing Tiao Bian).
Actions: Remove turbidity with fragrant medicinals, drain dampness, and unblock the collaterals
Indications: Indicated for the treatment of dampness obstructing the middle jiao and channels and collaterals, with oppression in the stomach cavity, loose stool, body pain, and white coating due to damp constraint of the sanjiao
Category: Formulas That Remove Dampness and Harmonize the Stomach.
Source: Xi S, Gong Y. Essentials of Chinese Materia Medica and Medical Formulas: New Century Traditional Chinese Medicine. Academic Press/Elsevier, 2017, pp. 746–747.
Composition
| Herb | Amount | % | Role | Function |
|---|---|---|---|---|
|
Chinese giant-hyssop
as printed: Herba Agastachis (huo xiang) 9 g
|
9g | 15.38% | — | |
|
Hou Po
as printed: Cortex Magnoliae Officinalis (hou po) 6 g
|
6g | 10.26% | — | |
|
Chen Pi
as printed: Pericarpium Citri Reticulatae (chen pi) 6 g
|
6g | 10.26% | — | |
|
Fu Ling Pi
as printed: Cutis Poriae (fu ling pi) 9 g
|
9g | 15.38% | — | |
|
Han Fang Ji
as printed: Radix Stephaniae Tetrandrae (fang ji) 9 g
|
9g | 15.38% | — | |
|
Da Dou (Huang) Juan
as printed: Semen Sojae Germinatum (da dou huang juan) 6 g
|
6g | 10.26% | — | |
|
Tong Cao
as printed: Medulla Tetrapanacis (tong cao) 4.5 g
|
4.5g | 7.69% | — | |
|
Yi Yi Ren
as printed: Semen Coicis (yi yi ren) 9 g
|
9g | 15.38% | — |
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 nature not shown: the chief herb (Chinese giant-hyssop) has no recorded temperature.
From 85% of the weighed grams.
Grams by band: cold 18%, cool 27%, neutral 30%, warm 24%.
Taste
- pungent 21%
- sweet 35%
- bitter 21%
- bland 23%
From 85% of the weighed grams.
Channels reached
- Spleen 91%
- Lung 88%
- Kidney 55%
- Stomach 52%
- Large intestine 30%
- Bladder 18%
Share of the grams entering each channel, from 85% of the weighed grams.
1 herb not profiled (no recorded temperature, taste or channels): Chinese giant-hyssop.
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
Decoct the ingredients with water for oral use
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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