Ma Xing Er Chen Tang

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Source: Zhong Yi Er Ke Xue

Last updated October 1, 2026

Not yet clinically reviewed

Description

Ma Xing Er Chen Tang (Two Matured Substances Decoction with Ephedra and Apricot Kernel), from Pediatrics in Chinese Medicine (Zhong Yi Er Ke Xue).

Actions: Diffuse the lung and direct qi downward, fortify the spleen and dry dampness

Indications: Indicated for the treatment of phlegm-damp cough due to internal damage, with cough, excessive white and thin phlegm, oppression in the chest, poor appetite and digestion, fatigue and lack of strength, pale tongue with white and glossy coating, and slippery coating

Category: Formulas That Dry Dampness and Dissolve Phlegm.

Source: Xi S, Gong Y. Essentials of Chinese Materia Medica and Medical Formulas: New Century Traditional Chinese Medicine. Academic Press/Elsevier, 2017, pp. 787–789.

Composition

Herb Amount % Role Function
Ma Huang
as printed: Herba Ephedrae (ma huang) 3 g
3g 5.36% —
Xing Ren
as printed: Semen Armeniacae Amarum (ku xing ren) 9 g
9g 16.07% —
Sheng Jiang
as printed: Rhizoma Zingiberis Recens (sheng jiang) 7 pieces
7pieces 100% —
Wu Mei
as printed: Fructus Mume (wu mei) 1 piece
1piece 100% —
Ban Xia
as printed: Rhizoma Pinelliae (ban xia) 15 g
15g 26.79% —
Ju Hong
as printed: Exocarpium Citri Rubrum (ju hong) 15 g
15g 26.79% —
Fu Ling
as printed: Poria (fu ling) 9 g
9g 16.07% —
Gan Cao
as printed: Radix et Rhizoma Glycyrrhizae Praeparata cum Melle (zhi gan cao) 5 g
5g 8.93% —

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 warm (+0.75)

From 100% of the weighed grams.

neutral warm

Grams by band: neutral 25%, warm 75%.

Taste

pungent sweet bitter bland
  • pungent 43%
  • sweet 17%
  • bitter 32%
  • bland 8%

From 100% of the weighed grams.

Channels reached

  • Lung 100%
  • Spleen 79%
  • Stomach 36%
  • Heart 25%
  • Large intestine 16%
  • Kidney 16%

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

2 herbs without a dose in grams, so left out of every figure above: Sheng Jiang, Wu Mei.

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 Jia Wei Shen Qi Wan →

Preparation

Decoct the ingredients with water for oral use

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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

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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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