Herb Formulas Notebook

Er Chen Tang

(Two Aged Decoction)

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Source: Formulary of the Pharmacy Service for Benefiting the People of the Taiping Era (1107)
Author: Imperial Medical Bureau

Category: Formulas that Dispel Phlegm

Pattern: Damp-Phlegm from Spleen Deficiency, Fox-like Bulging disorders of the Ren Mai

Key Symptoms: Focal distention, nausea or vomiting
Secondary Symptoms: Cough with copious white sputum that is easy to expectorate, stifling sensation in the chest and diaphragm, palpitations, dizziness, heaviness of the limbs

Tongue: White, greasy coating
Pulse: Slippery
Abdomen: Discomfort in epigastrium, splashing sounds in upper abdomen

Zhi Ban Xia 10g
Ju Hong 10g
Fu Ling 6g
Zhi Gan Cao 3g

Original source included Sheng Jiang and Wu Mei. These are often omitted today and Ju Hong may be replaced with Chen Pi.

Preparation: Decoction.

Actions: Dries Dampness, transforms Phlegm, regulates the Qi, harmonises the Middle Burner

Contraindications: Cough associated with Yin deficiency. Improper use can result in excessive thirst and dry throat.

Extraordinary Vessel attributions come from Li Shi-Zhen's (1577-8) Exposition on the Eight Extraordinary Vessels (Qi Jing Ba Mai Kao), trans. Chace & Shima (2009). This formula is given by Shen Jin-Ao in the commentary.

Research Links:
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Reference Notes: (click to display)

These pages are intended to assist clinicians and are not intended for self-diagnosis or treatment for which a qualified professional should be consulted.