Bencao Gangmu Reference Library
鸦胆子 / 苦榛子 / 苦参子 / 老鸦胆 / 鸦胆 — Brucea javanica (L.) Merr. (syn. Brucea sumatrana, Rhus javanica)
Pinyin: Yādǎnzǐ / Kǔzhēnzǐ / Kǔshēnzǐ · Malay: Melada Pahit / Pokok Melada Pahit / Java Brucea / Fructus Bruceae / Macassar Kernels · Family: Simaroubaceae (苦木科 / 鸦胆子属)
Energetics
Cold, Toxic (寒 / 大苦有小毒; Extreme bitterness purges damp-heat, lyses amoebic trophozoites, induces tumor apoptosis; irritating to gastric mucosa)
Flavor
Intensely bitter, acrid, toxic (大苦、大寒、大毒、极苦麻舌)
Meridians
Large Intestine (大肠), Liver (肝), Stomach (胃)
Traditional Edict
Java Brucea / Macassar Kernels (Melada Pahit / Ya Dan Zi / Ku Shen Zi). Black wrinkled drupes with white bitter kernels. Undisputed Emperor of Amoebic Dysentery & Antineoplastic Embolization (Ya Dan Zi You): terminates amoebic dysentery, induces cancer apoptosis, corrodes viral warts (You Mu).
Cautions & Contraindications
- GASTRIC IRRITATION & TOXICITY WARNING: Chewing seeds causes severe esophageal burning and projectile vomiting. CONTRAINDICATED in active gastric ulcers, severe liver/kidney dysfunction, and PREGNANCY (EMBRYOTOXIC).
Clinical Applications
- Intestinal and hepatic amoebiasis (Entamoeba histolytica trophozoite lysis via Brusatol), advanced non-small cell lung cancer and esophageal carcinoma (Ya Dan Zi You emulsion), viral verruca warts and corns.
Quality Markers
Mechanism & Phytochemistry
1. Brusatol and bruceantin bind eukaryotic 60S ribosomal subunits, halting protein synthesis and triggering cancer apoptosis. 2. Brucea oil fatty acids disrupt amoebic cell membranes.
Preparation & Dosage
CRITICAL PAOZHI & SWALLOWING PROTOCOL: 10 to 20 intact dehusked white kernels ENCAPSULATED OR EMBEDDED IN LONGAN PULP (Long Yan Rou) SWALLOWED WHOLE (NEVER CHEW; chewing causes violent vomiting). Topical warts: crushed seed oil applied directly onto wart (protect surrounding skin).
Appended Prescriptions
- 1. Classical Longan-Wrapped Brucea Kernel Swallowing Protocol for Amoebic Dysentery. 2. Viral Verruca Wart & Corn Corrosive Topical Paste with fresh crushed Ya Dan Zi kernels.
Yemama Apothecary · Petaling Jaya, Malaysia · For educational and clinical reference only
