Bencao Gangmu Reference Library
巧茶 / 卡痛 / 假鸦片 / 斑叶柯楠树 — Mitragyna speciosa (Korth.) Havil.
Pinyin: Qiǎochá / Kǎtòng / Jiǎ Yāpiàn · Malay: Ketum / Daun Ketum / Biak-biak / Pokok Mambog · Family: Rubiaceae (茜草科)
Energetics
Warm (微温 / 温); Biphasic Action (低剂量升阳兴奋,高剂量镇痛沉降)
Flavor
Bitter, astringent, slightly pungent (苦、涩、微辛)
Meridians
Kidney (肾), Liver (肝), Lung (肺), Spleen (脾)
Traditional Edict
Traditional rainforest laborer herb. Low doses stimulate Yang-Qi and muscular stamina; high doses sedate, relieve severe chronic pain, arrest cough, and bind chronic diarrhea.
Cautions & Contraindications
- CRITICAL LEGAL & ADDICTION WARNING: REGULATED UNDER MALAYSIAN POISONS ACT 1952 (SCHEDULE 3). Chronic recreational abuse causes physical dependence, tolerance, and withdrawal. CONTRAINDICATED in addiction history and with CNS depressants/alcohol.
Clinical Applications
- Severe chronic neuropathic and musculoskeletal pain management, opioid withdrawal detoxification mitigation, chronic severe diarrhea, and mental fatigue.
Quality Markers
Mechanism & Phytochemistry
1. Mitragynine is a G-protein-biased partial agonist at mu-opioid receptors without recruiting b-arrestin-2 (reducing respiratory depression and constipation risk compared to morphine). 2. 7-Hydroxymitragynine possesses 13-fold higher opioid potency. 3. a2-Adrenergic stimulation.
Preparation & Dosage
TRADITIONAL DECOCTION PROTOCOL (REGULATED): 3 to 5 leaves steeped as hot tea for physical labor; 10-15 g dried leaves in decoction for analgesia. Standardized extract under strict medical oversight.
Appended Prescriptions
- 1. Traditional Rainforest Laborer Endurance Tea (Air Rebusan Ketum) with Pandanus amaryllifolius. 2. Chronic Pain & Musculoskeletal Harmony Decoction with Morinda officinalis and Achyranthes.
Yemama Apothecary · Petaling Jaya, Malaysia · For educational and clinical reference only
