New to this? Read about Four Natures & Five Flavors and Channel Tropism

HerbBruceae Fructus

鸦胆子

Yā Dǎn Zǐ

Java Brucea Fruit

The dried ripe fruit of Brucea javanica (Simaroubaceae). Cold and bitter, slightly toxic, entering the Large Intestine and Liver channels. Clears heat-toxin, intercepts malaria, and stops dysentery. Taken orally wrapped in longan flesh; must not be chewed. Applied externally to cauterize warts. Dosage must be strictly controlled due to toxicity.

Actions · 功效

清热解毒Clear heat and resolve toxicity
截疟Intercept malaria
止痢Stop dysentery

Indications · 主治

热毒血痢Heat-toxin bloody dysentery
疟疾Malaria
鸡眼赘疣Corns and warts (external application)

Dosage · 用量

Per day · decoction · non-pregnant adult

0–1 g

用龙眼肉包裹吞服，每次10–15粒，不宜入煎剂

Reference range for non-pregnant adults. Not a personalized prescription. Pregnancy, lactation, and pediatric use require specialist supervision.

Draft· 2026-04-16

Footnotes · 引用

[1]Bencao Gangmu (Compendium of Materia Medica)

Permalink · CC BY-SA 4.0

Cite this entry

@misc{bencaodian-ya-dan-zi,
  author       = {{Bencaodian Editorial}},
  title        = {Yā Dǎn Zǐ 鸦胆子 (Java Brucea Fruit) — Bruceae Fructus},
  year         = {2026},
  howpublished = {Bencao Dian: A Bilingual Knowledge Graph of Traditional Chinese Medicine},
  url          = {https://bencaodian.org/en/herbs/ya-dan-zi},
  urldate      = {2026-04-16},
  note         = {CC BY-SA 4.0}
}

Permalink is fixed

@misc{bencaodian-ya-dan-zi, author = {{Bencaodian Editorial}}, title = {Yā Dǎn Zǐ 鸦胆子 (Java Brucea Fruit) — Bruceae Fructus}, year = {2026}, howpublished = {Bencao Dian: A Bilingual Knowledge Graph of Traditional Chinese Medicine}, url = {https://bencaodian.org/en/herbs/ya-dan-zi}, urldate = {2026-04-16}, note = {CC BY-SA 4.0} }