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a Chinese Formula

Er Chen Tang (Two Cured Decoction)

Previous Formula in CategoryNext Formula in Category Formula 1 of 15 in Formulas that Treat Phlegm


  • Formulas that Dry Dampness and Expel Phlegm


  • Dries dampness, reduces phlegm, regulates the Qi, and harmonizes the Middle Jiao


  • Nausea, vomiting, cough with easy expectoration of copious white sputum Epigastric and chest distension and fullness. Palpitations and dizziness.

Possible Tongue Appearance:

  • Swollen tongue with teeth marks and a thick white greasy coat

Possible Pulse Patterns:

  • Slippery pulse

Western Uses:

  • Chronic Tracheitis
  • Bronchitis
  • Pulmonary Emphysema
  • Goiter

Cautions, Contraindications, Herb Drug Interactions:

  • Do not use in cases where there is phlegm heat, dry cough, or dry phlegm due to Lung Qi Deficiency
  • This formula contains one or more toxic substances (while some Chinese herbs are toxic, it must be noted that many come prepared, or are combined, to mitigate their toxicity).

Preparation Notes:

  • Decoction. Chen Pi can be substituted for Ju Hong.

Originally Appeared In:

  • Imperial Grace Formulary of the Tai Ping Era (Tai Ping Hui Min He Ji Ju Fang)

Combined Channels of all herbs in this formula:

  • Lungs, Stomach, Spleen, Heart

Substances in this Formula (4 Total):

Ban Xia (Rhizoma Pinelliae Tematae)
Ban Xia (Pinellia Rhizome) 半夏
Qty: 15 grams
Chan: LU, SP, ST
Prop: Spicy, Warm, Toxic
Latin: Rhizoma Pinelliae Tematae
Cat: Warm Herbs that Transform Phlegm-Cold
Ju Hong (Exocarpium Citri Rubrum)
Ju Hong (Outermost Citrus Peel, Tangerine Peel, Orange Peel) 橘红
Qty: 15 grams
Chan: LU, ST
Prop: Spicy, Bitter, Warm
Latin: Exocarpium Citri Rubrum
Cat: Herbs that Regulate the Qi
Fu Ling (Scierotium Poriae Cocos)
Fu Ling (Sclerotium of Tuckahoe, China Root, Poria, Hoelen) 茯苓
Qty: 9 grams
Chan: HT, SP, LU
Prop: Sweet, Bland, Neutral
Latin: Scierotium Poriae Cocos
Cat: Herbs that Regulate Water and Drain Dampness
Zhi Gan Cao (Radix Glycyrrhizae)
Zhi Gan Cao (Honey Fried Licorice Root) 炙甘草
Qty: 4.5 grams
Chan: All 12 Channels
Prop: Sweet, Warm
Latin: Radix Glycyrrhizae
Cat: Herbs that Tonify Qi
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