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Polypodii Nipponici Rhizoma

Japanese polypody [root]

水龙骨 〔水龍骨〕 shuǐ lóng gǔ

Kingdom: Plant

Origin in unofficial sources: Polypodium niponicum Mett.; Polypodium vulgare L.

Use: Medicinal

Properties: Bitter; cool.

Actions and indications: Transforms dampness; clears heat; dispels wind; frees the network vessels. Treats sand foulness (shā huì) diarrhea; dysentery; strangury; white turbidity; wind impediment (fēng bì); lumbar pain; fire eye (huǒ yǎn); swollen sores.

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

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