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The dried branch bark or trunk bark of Fraxinus rhynchophylla, F. chinensis, F. szaboana, or F. stylosa (Oleaceae). Cold, bitter and astringent, entering the Liver, Gallbladder, and Large Intestine channels. Clears heat, dries dampness, and stops dysentery; also clears the Liver and brightens the eyes for eye disorders.
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，微寒。主风寒湿痹，洗洗寒气，除热，目中青翳白膜。久服头不白，轻身。
中品
@misc{bencaodian-qin-pi,
author = {{Bencaodian Editorial}},
title = {Qín Pí 秦皮 (Ash Bark) — Fraxini Cortex},
year = {2026},
howpublished = {Bencao Dian: A Bilingual Knowledge Graph of Traditional Chinese Medicine},
url = {https://bencaodian.org/en/herbs/qin-pi},
urldate = {2026-04-17},
note = {CC BY-SA 4.0}
}© Bencaodian Editorial · Licensed under CC BY-SA 4.0
秦皮富含香豆素类（秦皮苷、秦皮素）和鞣质，具抗炎、抗菌、镇痛及利尿作用。
Qin Pi is rich in coumarins (esculin, esculetin) and tannins with anti-inflammatory, antimicrobial, analgesic, and diuretic effects.
秦皮苦涩寒，清热燥湿，收涩止痢。
Bitter-astringent and cold; clears heat, dries dampness, and astringes to stop diarrhea.
This section is provided for academic reference only and does not constitute medical advice.