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The dried root of Pulsatilla chinensis (Ranunculaceae). Cold and bitter, entering the Stomach and Large Intestine channels. Excels at clearing heat-toxin and cooling the blood to stop dysentery; the premier herb for heat-toxin bloody dysentery, most famously used in Bai Tou Weng Tang (Pulsatilla Decoction).
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.
味苦，温。主温疟，狂易寒热，癥瘕积聚，瘿气，逐血，止痛。
下品
@misc{bencaodian-bai-tou-weng,
author = {{Bencaodian Editorial}},
title = {Bái Tóu Wēng 白头翁 (Pulsatilla Root) — Pulsatillae Radix},
year = {2026},
howpublished = {Bencao Dian: A Bilingual Knowledge Graph of Traditional Chinese Medicine},
url = {https://bencaodian.org/en/herbs/bai-tou-weng},
urldate = {2026-04-17},
note = {CC BY-SA 4.0}
}© Bencaodian Editorial · Licensed under CC BY-SA 4.0
白头翁含三萜皂苷和原白头翁素等内酯，具抗阿米巴、抗菌、抗炎和止痢作用。
Bai Tou Weng contains triterpene saponins and protoanemonin-type lactones with amoebicidal, antibacterial, anti-inflammatory, and antidiarrheal effects.
白头翁苦寒，清热解毒，凉血止痢，为治热毒血痢要药。
Bitter-cold; clears heat, resolves toxin, cools blood, and stops dysenteric disorder; a principal herb for heat-toxin bloody dysentery.
This section is provided for academic reference only and does not constitute medical advice.