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The dried rhizome of Atractylodes macrocephala (Asteraceae). Enters the Spleen and Stomach channels. Sweet, bitter, and warm, it is regarded as the primary herb for fortifying the Spleen and augmenting qi while drying dampness and promoting urination. Commonly paired with fu ling to strengthen the Spleen and drain dampness, as in Si Jun Zi Tang.
健脾燥湿，利水消肿之力较胜
缓和燥性，增强健脾止泻之功
健脾止泻，多用于脾虚久泻
健脾止泻常用6–12g；燥湿利水用9–15g；大剂量(30–60g)可用于顽固性便秘以补气通便。
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.
阴虚内热、津液亏耗、燥渴者不宜用。
性温而燥，阴虚内热、口干舌燥者不宜单用。现代研究显示本品无明显毒性，临床常规用量安全。
味苦，温。主风寒湿痹，死肌，痉疸，止汗，除热，消食，作煎饵。久服轻身延年不饥。
上品
@misc{bencaodian-bai-zhu,
author = {{Bencaodian Editorial}},
title = {Bái Zhú 白术 (White Atractylodes Rhizome) — Atractylodis Macrocephalae Rhizoma},
year = {2026},
howpublished = {Bencao Dian: A Bilingual Knowledge Graph of Traditional Chinese Medicine},
url = {https://bencaodian.org/en/herbs/bai-zhu},
urldate = {2026-04-17},
note = {CC BY-SA 4.0}
}© Bencaodian Editorial · Licensed under CC BY-SA 4.0
白术的主要活性成分为倍半萜内酯（白术内酯 I、II、III）及多糖，具有健脾益气、调节胃肠动力、利尿、抗炎和免疫调节作用。
Atractylodis macrocephalae Rhizoma contains sesquiterpene lactones (atractylenolides I–III) and polysaccharides, with prokinetic/antispasmodic bidirectional gastrointestinal effects, diuretic, anti-inflammatory, and immunomodulatory activity.
《中药学》（Bensky）指出白术对胃肠道具有双向调节作用，既可促进胃排空，也可抑制肠道过度蠕动。
Bensky notes that Bai Zhu exerts bidirectional regulation of gastrointestinal motility, both promoting gastric emptying and inhibiting intestinal hyperactivity.
陈氏药理学提到白术多糖可增强网状内皮系统吞噬功能，具有免疫增强作用。
Chen & Chen note that Bai Zhu polysaccharides enhance reticuloendothelial phagocytosis, indicating immunostimulant activity.
《中国药典》2020年版规定白术按白术内酯 III 计含量不得少于 0.35 mg/g。
The 2020 Chinese Pharmacopoeia specifies a minimum content of 0.35 mg/g atractylenolide III.
This section is provided for academic reference only and does not constitute medical advice.