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Alternate Chinese names: 黄药根 huáng yào gēn; 木药子 mù yào zǐ; 大苦 dà kǔ; 黄独 huáng dú; 黄药 huáng yào

Kingdom: Plant

Origin in unofficial sources: Dioscorea bulbifera L.

Use: Medicinal

Category: Phlegm-transforming cough-relieving panting-calming agents / Phlegm-transforming agents

Properties: Bitter; cold; nontoxic*.

Channel entry: Lung and liver channels.*

Actions and indications:

• Disperses binds and goiter: Goiter.
• Clears heat and resolves toxin: Toxin swelling of sores; painful swollen throat; venomous snake bites; tumors.
• Cools the blood and stanches bleeding: Vomiting of blood (blood ejection); nosebleed; expectoration of blood.

Dosage and method: Oral: Decoct (4.5–9g). Topical: Apply crushed or grind and apply mixed.

Quality: Large pieces with grayish-black skin, and yellowish white on the cut surface.

Production area: Produced mainly in Húběi, Húnán, and Jiāngsū, but also in Héběi, Shāndōng, Zhèjiāng, ānhuī, Sìchuān, Yúnnán, Guìzhōu, and Fújiàn.

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