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Kingdom: Plant

Origin in unofficial sources: Tripterygium wilfordii Hook. f.

Use: Medicinal

Category: Wind-damp–dispelling agents / Wind-damp-heat–dispelling agents

Properties: Bitter, acrid; cold*; highly toxic*.

Channel entry: Liver channel.

Actions and indications:

• Dispels wind and dampness; frees the network vessels; quickens the blood and disperses swelling: Wind-damp impediment (fēng shī bì); toxin swelling of clove sores (dīng chuāng); leprosy; stubborn lichen (xiǎn).
• Kills worms and resolves toxin: leprosy; stubborn lichen; scab; eczema.

Dosage and method: Oral: 10–30g (reduce the amount if the product includes the root bark), boiled for 1–2 hours; 0.5–1.5g in pills and powders. Topical: Apply the dried form as a powder and the fresh product crushed. Can also be made as a wine or paste.

Warnings: Contraindicated in pregnancy and use with case in biomedically diagnosed heart, liver, stomach, or kidney disease or reduced white blood cell count.

Production area: Zhèjiāng, Jiāngxī, ānhuī, Húnán, Guǎngdōng, Fújiàn, Táiwān.

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