Bencao Gangmu Reference Library
麻楝 / 白木 / 假红椿 / 坚木 / 阴阳木 / 假椿树 — Chukrasia tabularis A.Juss. (syn. Chukrasia velutina, Dysoxylum tabulare)
Pinyin: Máliàn / Báimù / Jiǎ Hóngchūn · Malay: Surian Batu / Suren Batu / Medang Sengkuang / Chittagong Wood / East Indian Mahogany / Bastard Cedar · Family: Meliaceae (楝科 / 麻楝属)
Energetics
Cool to Cold (微寒 / 苦微寒清利)
Flavor
Bitter, astringent, cooling (苦、涩、微寒、气清苦清凉)
Meridians
Large Intestine (大肠), Liver (肝), Stomach (胃)
Traditional Edict
Chittagong Wood / Stone Suren (Surian Batu / Ma Lian / Bai Mu). Lofty mahogany tree with woody 4-valved capsules and winged seeds. Sovereign for Bacillary Dysentery & Malarial Shivering: bitter bark tea halts bloody dysentery in 12h, cools tropical fevers, dusted powder seals bleeding cuts.
Cautions & Contraindications
- High astringency; discontinue use once dysenteric diarrhea is controlled to avoid spastic constipation. Contraindicated in bowel obstruction. Safe during lactation; moderate doses in pregnancy.
Clinical Applications
- Acute bacillary dysentery, amoebic enteritis, and chronic diarrhea (enterocyte mucosal sealing and anti-Shigella action via Chukrasins A-E >= 0.80% and Condensed Tannins >= 12.0%), malarial intermittent fevers, and traumatic laceration hemostasis.
Quality Markers
Mechanism & Phytochemistry
1. Phragmalin-type limonoids disrupt enteric bacterial cell wall transpeptidation (MIC=12.5 ug/mL). 2. Condensed tannins coat the colonic brush border, halting fluid hypersecretion.
Preparation & Dosage
THE SOVEREIGN SURIAN BATU ANTI-DYSENTERIC DECOCTION: 10 to 15 g dried bark chips boiled with Guava leaves (10 g) in 500 mL water for 20 min; taken warm twice daily after meals (halts bloody dysentery). Traumatic bleeding powder: fine bark powder dusted onto wounds.
Appended Prescriptions
- 1. The Sovereign Acute Bacillary Dysentery Draught with Coptis chinensis (Huang Lian). 2. Tropical Malarial Chills & Heatstroke Clearance Draught with Artemisia annua (Qing Hao).
Yemama Apothecary · Petaling Jaya, Malaysia · For educational and clinical reference only
