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Polygoni Hydropiperis Radix

Water pepper root

水蓼根 〔水蓼根〕 shuǐ liǎo gēn

Kingdom: Plant

Origin in unofficial sources: Polygonum hydropiper L.

Use: Medicinal

Properties: Acrid; warm.

Actions and indications: Clears heat and disinhibits dampness; dispels wind; quickens the blood; resolves toxin. Treats dysentery or diarrhea with gripping abdominal pain; wind-damp bone pain; menstrual irregularities; damp lichen (xiǎn). For diarrhea and dysentery use alone or combine with purslane and phoenix-tail fern (fèng wěi cǎo).

Dosage and method: Oral: Decoct (15–30g). Topical: Apply as a wash.

Production area: Most parts of China.

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