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The dried root of Aucklandia lappa (syn. Saussurea costus) (Asteraceae). Enters the Spleen, Stomach, Large Intestine, Triple Burner, and Gallbladder channels. Pungent, bitter, and warm, it is the primary herb for moving qi and alleviating pain, called the 'sage herb of the triple burner qi level.' Featured in Mu Xiang Bing Lang Wan and Xiang Sha Liu Jun Zi Tang.
行气止痛作用强，多用于气滞胀痛
行气力缓，实肠止泻，多用于泄痢后重
煎服3–6g；煨用或后下。生用行气力强，煨用止泻力胜。
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.
阴虚津亏、脏腑燥热者慎用。气虚血亏无气滞者不宜单用。
本品辛温香燥，阴虚火旺、津液不足者慎用。历史上曾用马兜铃科青木香，因含马兜铃酸有肾毒性，现药典所载木香为菊科云木香，应加以区分。
治一切气，心腹刺痛，胸膈痞塞，两胁胀满，木香、槟榔等分为末，名木香槟榔丸。
@misc{bencaodian-mu-xiang,
author = {{Bencaodian Editorial}},
title = {Mù Xiāng 木香 (Costus Root) — Aucklandiae Radix},
year = {2026},
howpublished = {Bencao Dian: A Bilingual Knowledge Graph of Traditional Chinese Medicine},
url = {https://bencaodian.org/en/herbs/mu-xiang},
urldate = {2026-04-17},
note = {CC BY-SA 4.0}
}© Bencaodian Editorial · Licensed under CC BY-SA 4.0
木香（云木香）富含倍半萜内酯及挥发油，现代研究显示其具有促胃肠动力、解痉、抗炎与抑菌作用，呼应传统行气止痛之功。
Aucklandia root is rich in sesquiterpene lactones (notably costunolide and dehydrocostus lactone) and volatile oils, with modern studies indicating prokinetic, antispasmodic, anti-inflammatory, and antimicrobial effects consistent with its traditional qi-moving and pain-relieving use.
《中药学》（Bensky）记载木香挥发油对离体肠管低浓度兴奋、高浓度抑制，符合其双向调节气机之效。
Bensky notes that Aucklandia volatile oil stimulates isolated intestinal smooth muscle at low concentration and inhibits it at high concentration, paralleling its bidirectional qi-regulating action.
《中药学》（Chen & Chen）指出去氢木香内酯有抗炎及抑菌活性，对多种革兰氏阳性菌有效。
Chen & Chen report that dehydrocostus lactone shows anti-inflammatory activity and inhibits several Gram-positive bacteria.
This section is provided for academic reference only and does not constitute medical advice.