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清热解毒、消痰利咽力强，治咽喉肿痛、痰盛咳喘
内服煎汤3–10g；入丸散用量酌减。外用适量，煎水洗或研末吹喉。
For educational reference only — not medical advice.
射干主含异黄酮类化合物（射干苷、鸢尾黄素等），具有抗炎、抗病毒、祛痰及抑菌作用。
Belamcanda rhizome contains isoflavonoids (tectoridin, tectorigenin, irigenin) with anti-inflammatory, antiviral, expectorant and antibacterial activity.
主治咽喉肿痛、痰涎壅盛，为射干麻黄汤主药。
Principal herb in She Gan Ma Huang Tang for throat swelling with copious phlegm.
射干提取物对金葡菌、肺炎双球菌及多种呼吸道病毒有抑制作用。
Extracts inhibit S. aureus, pneumococcus and several respiratory viruses in vitro.
This section is provided for academic reference only and does not constitute medical advice.
病无实热及脾虚便溏者不宜。孕妇忌服。
性寒有小毒，用量不宜过大，脾虚便溏者慎服。孕妇禁用。过量可致胃肠刺激、腹痛腹泻。
咳而上气，喉中水鸡声，射干麻黄汤主之。
祛痰利咽之品
@misc{bencaodian-she-gan,
author = {{Bencaodian Editorial}},
title = {Shè Gān 射干 (Belamcanda Rhizome) — Belamcandae Rhizoma},
year = {2026},
howpublished = {Bencao Dian: A Bilingual Knowledge Graph of Traditional Chinese Medicine},
url = {https://bencaodian.org/en/herbs/she-gan},
urldate = {2026-04-09},
note = {CC BY-SA 4.0}
}