Qing Chang Yin
Star请肠饮 (Clear the Intestines Drink)
Source: Bian Zheng Lun (1687)
Last updated October 1, 2026
Description
Qing Chang Yin (Clear the Intestines Drink), from the Bian Zheng Lun (Records of Differential Diagnosis) — a variation of Da Huang Mu Dan Tang.
Actions: Activates the blood; Eliminates toxins; Nourishes yin; Purges fire.
Source: Chen JK, Chen TT. Chinese Herbal Formulas and Applications: Pharmacological Effects & Clinical Research. Art of Medicine Press, 2009, p. 1381.
Composition
| Herb | Amount | % | Role | Function |
|---|---|---|---|---|
|
Jin Yin Hua
as printed: Jin Yin Hua (Flos Lonicerae Japonicae) 90g
|
90g | 33.33% | Jun (Chief) | — |
|
Gan Cao
as printed: Gan Cao (Radix et Rhizoma Glycyrrhizae) 9g
|
9g | 3.33% | Jun (Chief) | — |
|
Dang Gui
as printed: Dang Gui (Radix Angelicae Sinensis) 60g
|
60g | 22.22% | Chen (Deputy) | — |
|
Di Yu
as printed: Di Yu (Radix Sanguisorbae) 30g
|
30g | 11.11% | Chen (Deputy) | — |
|
Mai Men Dong
as printed: Mai Dong (Radix Ophiopogonis) 30g
|
30g | 11.11% | Zuo (Assistant) | — |
|
Xuan Shen
as printed: Xuan Shen (Radix Scrophulariae) 30g
|
30g | 11.11% | Zuo (Assistant) | — |
|
Yi Yi Ren
as printed: Yi Yi Ren (Semen Coicis) 15g
|
15g | 5.56% | Zuo (Assistant) | — |
|
Huang Qin
as printed: Huang Qin (Radix Scutellariae) 6g
|
6g | 2.22% | Zuo (Assistant) | — |
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 cool (-0.99)
From 100% of the weighed grams.
Grams by band: cold 47%, cool 28%, neutral 3%, warm 22%.
Small but decisive: Huang Qin 6g (cold, 2% of the grams). Dose weighting nearly cancels a herb this small, but it may be what the formula is for.
Taste
- pungent 11%
- sweet 60%
- sour 6%
- bitter 17%
- salty 4%
- bland 3%
From 100% of the weighed grams.
Channels reached
- Stomach 78%
- Heart 72%
- Lung 67%
- Large intestine 52%
- Spleen 44%
- Liver 33%
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
Prepared as a decoction.
Relationships
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Formula family
Each entry reads as the larger formula written out: “+” adds its other catalogue cores, then the herbs none of them hold. A catalogue formula counts as a core only when at least 80% of its herbs are present, no more than 1 is absent, and the absent herb is not its chief.
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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