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The dried ripe fruit of Melia toosendan (Meliaceae). Enters the Liver, Small Intestine, and Bladder channels. Bitter and cold, it is a key herb for moving qi and alleviating pain while draining Liver heat, best known in the Jinlingzi San formula paired with Yan Hu Suo.
行气止痛力强，但毒性较大
减毒缓性，临床常用
煎服5–10g。炒用减毒。不宜过量久服。
Reference range for non-pregnant adults. Not a personalized prescription. Pregnancy, lactation, and pediatric use require specialist supervision.
Protective guidance only — when to avoid or use with caution. This block deliberately omits pregnancy, lactation, and pediatric dosing: any such use must be managed by a qualified TCM practitioner or appropriate specialist.
脾胃虚寒者不宜。不宜过量或久服，有肝毒性。
川楝子含川楝素，过量可引起肝损伤、恶心呕吐，严重者致肝坏死。不宜长期或大量使用。
味苦，寒，有小毒。主温疾伤寒，大热烦狂，杀三虫疥癞，利小便水道。
@misc{bencaodian-chuan-lian-zi,
author = {{Bencaodian Editorial}},
title = {Chuān Liàn Zǐ 川楝子 (Sichuan Chinaberry Fruit) — Toosendan Fructus},
year = {2026},
howpublished = {Bencao Dian: A Bilingual Knowledge Graph of Traditional Chinese Medicine},
url = {https://bencaodian.org/en/herbs/chuan-lian-zi},
urldate = {2026-04-16},
note = {CC BY-SA 4.0}
}© Bencaodian Editorial · Licensed under CC BY-SA 4.0
川楝子主含柠檬苦素类川楝素，低剂量有抗炎镇痛、驱虫、抗肿瘤活性，但过量具肝细胞毒性，与传统强调"有小毒、不宜久服"一致。
Chuanlianzi contains the limonoid toosendanin, which at low doses shows anti-inflammatory, analgesic, antiparasitic, and antitumor activity, but is hepatocytotoxic at high doses, consistent with classical warnings of mild toxicity.
《中国药典》收载川楝子，以川楝素为含量测定指标。
Chinese Pharmacopoeia lists Chuanlianzi with toosendanin as assay marker.
川楝素有明确肝毒性，过量致肝细胞坏死，临床需控制剂量与疗程。
Toosendanin has documented hepatotoxicity with hepatocyte necrosis at excess doses; clinical use requires dose and duration control.
This section is provided for academic reference only and does not constitute medical advice.