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The dried root bark of Dictamnus dasycarpus (Rutaceae). Cold and bitter, entering the Spleen, Stomach, and Bladder channels. Excels at clearing heat, drying dampness, dispelling wind, and stopping itch. A principal herb for damp-heat skin conditions with itching; also treats jaundice and damp-heat impediment.
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，寒。主头风，黄疸，咳逆，淋沥，女子阴中肿痛，湿痹死肌，不可屈伸起止行步。
中品
@misc{bencaodian-bai-xian-pi,
author = {{Bencaodian Editorial}},
title = {Bái Xiān Pí 白鲜皮 (Dictamnus Root Bark) — Dictamni Cortex},
year = {2026},
howpublished = {Bencao Dian: A Bilingual Knowledge Graph of Traditional Chinese Medicine},
url = {https://bencaodian.org/en/herbs/bai-xian-pi},
urldate = {2026-04-17},
note = {CC BY-SA 4.0}
}© Bencaodian Editorial · Licensed under CC BY-SA 4.0
白鲜皮含呋喃喹啉生物碱和柠檬苦素类，具抗菌、抗真菌、抗炎、利胆作用，但生物碱类有肝毒性风险。
Bai Xian Pi contains furoquinoline alkaloids and limonoids with antimicrobial, antifungal, anti-inflammatory, and choleretic effects; alkaloids carry hepatotoxic risk at high doses.
白鲜皮苦寒，清热燥湿，祛风解毒，为治湿热疮疹要药。
Bitter-cold; clears heat, dries damp, dispels wind, and resolves toxin; a key herb for damp-heat skin lesions.
已有白鲜皮致肝损害病例报告，长期或大剂量使用须监测肝功能。
Case reports of Bai Xian Pi-associated hepatotoxicity; monitor liver function with prolonged or high-dose use.
This section is provided for academic reference only and does not constitute medical advice.