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The dried caulis of Akebia quinata or A. trifoliata (Lardizabalaceae). Enters the Heart, Small Intestine, and Bladder channels. Bitter-cold and downward-draining, it clears Heart fire above and disinhibits urination below, especially for oral sores with dark urine from Heart fire transferring to the Small Intestine.
现多用川木通或白木通代替关木通（含马兜铃酸，已禁用）
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.
（通草）味辛，平。主去恶虫，除脾胃寒热，通利九窍血脉关节，令人不忘。
中品
@misc{bencaodian-mu-tong,
author = {{Bencaodian Editorial}},
title = {Mù Tōng 木通 (Akebia Stem) — Akebiae Caulis},
year = {2026},
howpublished = {Bencao Dian: A Bilingual Knowledge Graph of Traditional Chinese Medicine},
url = {https://bencaodian.org/en/herbs/mu-tong},
urldate = {2026-04-17},
note = {CC BY-SA 4.0}
}© Bencaodian Editorial · Licensed under CC BY-SA 4.0
木通（五叶木通）含三萜皂苷和钾盐，具利尿、抗炎、免疫调节作用；须注意与关木通（含马兜铃酸）区别，后者已禁用。
Akebia Mu Tong contains triterpene saponins and potassium salts with diuretic, anti-inflammatory, and immunomodulatory effects; must be distinguished from Guan Mu Tong (Aristolochia manshuriensis) which contains nephrotoxic aristolochic acids and is banned.
木通苦寒，利尿通淋，清心火，通经下乳。必须使用五叶木通，禁用关木通。
Bitter-cold; promotes urination, clears heart fire, frees channels, and promotes lactation. Only five-leaf Akebia Mu Tong is to be used; Aristolochia Guan Mu Tong is banned due to aristolochic acid nephrotoxicity.
关木通（马兜铃科）含马兜铃酸，可致不可逆肾损害和尿路上皮癌，国际多国已禁用。
Guan Mu Tong (Aristolochia) contains aristolochic acids causing irreversible nephropathy and urothelial carcinoma; banned in most jurisdictions.
This section is provided for academic reference only and does not constitute medical advice.