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Brucea [fruit]
鸦胆子 〔鴉膽子〕yā dǎn zǐ
Latin pharmacognostic name: Bruceae Fructus
Alternate English names: Japanese brucea [fruit]
Alternate Chinese names: 老鸦胆 lǎo yā dǎn; 鸦胆 yā dǎn; 鸦蛋子 yā dàn zǐ; 鸭蛋子 yā dàn zǐ; 鸭胆子 yā dǎn zǐ
Kingdom: Plant
Origin in PRC Pharmacopoeia: Brucea javanica (L.) Merr. (PRC Pharmacopoeia)
Origin (other sources): Brucea javanica (L.) Merr.*
Use: Medicinal
Category: Heat-clearing agents / Heat-clearing toxin-resolving agents
Properties: Bitter; cold; toxic.
Channel entry: Large intestine and liver channels.
Indications:
- Clears heat and resolves toxin; treats dysentery: Heat toxin patterns of blood dysentery or
cold accumulation patterns of enduring dysentery, with pus and blood in the stool. - Interrupts malaria: Third- and fourth-stage malarial disease.
- Erodes warts: Corns and warts.
Dosage & Method: Oral: Swallow 5–20 seeds after meals (3 times a day) packed in dried longan (or capsules). Topical: Apply crushed.
Warnings: Modern research has shown that yā dǎn zǐ is damaging to the stomach and intestines as well as to the liver and kidneys. It should not be taken for a long time. It is contraindicated in spleen-stomach vacuity. It should be used with care in gastrointestinal bleeding or in liver and kidney disease. When using it for corns and warts, protect the surrounding area with a sticking plaster; avoid contact with healthy skin.
Quality: Firm white oily fruits are the best.
Product Area: Guǎngdōng, Guǎngxī, Fújiàn, Táiwān.
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