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Ma Huang Tang (麻黃湯), ‘Ephedra Decoction’, strongly induces sweating to release exterior wind-cold of the excess type (no sweating), and diffuses Lung qi to calm wheezing.
English Name
Ephedra Decoction
Classical Source
Shang Han Lun, c. 220 CE
Ingredients
Actions & Functions
- Induces sweating and releases exterior wind-cold (excess)
- Diffuses Lung qi and calms wheezing
Indications
Exterior wind-cold excess: chills and fever with no sweating, headache and generalised body aches, and wheezing.
Tongue & Pulse
Tongue: thin, white coat. Pulse: floating and tight.
Modifications
With interior heat and irritability, add Shi Gao (Da Qing Long Tang). For milder cases, reduce the dose of Ma Huang.
Cautions & Contraindications
A strong diaphoretic - contraindicated in exterior deficiency with sweating, in qi or yin deficiency, and in those with hypertension. Use briefly and stop once sweating is achieved.
