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宣肺解表力强，用于外感咳嗽
润肺止咳之功增强，用于内伤久咳
煎服5–10g；内伤久咳宜蜜炙；外感咳嗽宜生用。
For educational reference only — not medical advice.
款冬花含款冬酮、黄酮及吡咯里西啶生物碱，具止咳、祛痰、升压及抗炎作用。
Tussilago contains tussilagone, flavonoids, and pyrrolizidine alkaloids with antitussive, expectorant, pressor, and anti-inflammatory effects.
款冬酮具明显止咳和短暂升压作用，并呈现抗炎活性。
Tussilagone produces notable antitussive and transient pressor effects and shows anti-inflammatory activity.
含肝毒性吡咯里西啶生物碱；孕妇、哺乳期及肝病患者禁用；不宜长期或大剂量使用。
Contains hepatotoxic pyrrolizidine alkaloids — contraindicated in pregnancy, lactation, and liver disease; avoid long-term or high-dose use.
《中国药典》以款冬酮含量（不少于 0.070%）为质量指标。
Chinese Pharmacopoeia specifies tussilagone (≥0.070%) as the quality marker.
This section is provided for academic reference only and does not constitute medical advice.
阴虚燥咳、肺火壅盛之咳血者不宜单用。含吡咯里西啶生物碱，不宜久服。
含吡咯里西啶类生物碱（senkirkine 等），大剂量或久服对肝有潜在毒性，临床宜控制疗程与剂量。常与紫菀相须为用，一宣一降，相得益彰。
味辛，温。主咳逆上气善喘，喉痹，诸惊痫，寒热邪气。
中品
@misc{bencaodian-kuan-dong-hua,
author = {{Bencaodian Editorial}},
title = {Kuǎn Dōng Huā 款冬花 (Coltsfoot Flower) — Farfarae Flos},
year = {2026},
howpublished = {Bencao Dian: A Bilingual Knowledge Graph of Traditional Chinese Medicine},
url = {https://bencaodian.org/en/herbs/kuan-dong-hua},
urldate = {2026-04-09},
note = {CC BY-SA 4.0}
}