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Dao Tan Tang (導痰湯) is Er Chen Tang with added qi-moving and phlegm-breaking herbs; it dries damp and transforms stubborn phlegm while moving qi, for thick phlegm-damp obstruction.
English Name
Guide Out Phlegm Decoction
Classical Source
Chuan Xin Shi Yong Fang (Song)
Ingredients
- Ban Xia – chief; Tian Nan Xing (transform stubborn phlegm); Zhi Shi (move qi)
- Chen Pi, Fu Ling, Gan Cao, Sheng Jiang
Actions & Functions
- Dries damp and transforms stubborn phlegm
- Promotes the movement of qi and disperses fullness
Indications
Stubborn phlegm-damp: cough with copious thick sputum, a stifling chest, dizziness, nausea, and a sensation of focal distension.
Tongue & Pulse
Tongue: white greasy coat. Pulse: slippery.
Modifications
Add Ren Shen and Shi Chang Pu (Di Tan Tang) for phlegm clouding the mind with wind-stroke.
Cautions & Contraindications
Drying; not for phlegm from yin deficiency or dry cough.
