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清肝胆实火、泻肝经湿热之代表方。主治肝胆实火上炎之头痛目赤、胁痛口苦、耳聋耳肿；或肝经湿热下注之阴肿阴痒、筋痿阴汗、小便淋浊、妇女带下；舌红苔黄腻，脉弦数有力。
| Herb | Role | Dosage | Notes |
|---|---|---|---|
| 龙胆草Lóng Dǎn Cǎo | 君Sovereign | 6g | 大苦大寒，上泻肝胆实火，下清下焦湿热，为君 |
| 黄芩Huáng Qín | 臣Minister | 9g | 清肝胆湿热，助龙胆草泻火 |
| 栀子Zhī Zǐ | 臣Minister | 9g | 清三焦火，导热下行 |
| 泽泻Zé Xiè | 佐Assistant | 9g | 渗湿泄热 |
| 车前子Chē Qián Zǐ | 佐Assistant | 9g | 清热利水，使湿热从小便出 |
| 生地黄Shēng Dì Huáng | 佐Assistant | 9g | 凉血滋阴，防苦寒渗利伤阴 |
| 当归Dāng Guī | 佐Assistant | 3g | 养血柔肝，与生地配合防苦燥伤血 |
| 柴胡Chái Hú | 佐Assistant | 6g | 疏畅肝胆气机，并引诸药入肝经 |
| 甘草Gān Cǎo | 使Envoy | 6g | 调和诸药，缓苦寒之性 |
水煎服。
@misc{bencaodian-long-dan-xie-gan-tang,
author = {{Bencaodian Editorial}},
title = {Lóng Dǎn Xiè Gān Tāng 龙胆泻肝汤 (Gentian Decoction to Drain the Liver)},
year = {2026},
howpublished = {Bencao Dian: A Bilingual Knowledge Graph of Traditional Chinese Medicine},
url = {https://bencaodian.org/en/formulas/long-dan-xie-gan-tang},
urldate = {2026-04-09},
note = {CC BY-SA 4.0}
}