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清热生津、凉血之力较胜，多用于热病伤津
清热凉血、养阴生津
鲜品用量加倍至12–30g，捣汁饮用；煎服干品9–15g；清热凉血宜生用
本平台仅供学术参考，不构成医疗建议。
生地黄主含环烯醚萜苷类（梓醇等）及多糖，具有免疫调节、抗炎、降血糖、养阴生津作用。
Raw Rehmannia contains iridoid glycosides (catalpol) and polysaccharides, with immunomodulatory, anti-inflammatory, hypoglycemic and yin-nourishing activities.
清热凉血养阴生津，主治温病热入营血。
Clears heat, cools blood, and nourishes yin; principal for warm disease entering nutritive and blood levels.
梓醇具有神经保护及降血糖作用，被广泛研究。
Catalpol exhibits neuroprotective and hypoglycemic activities extensively documented in pharmacology literature.
《中国药典》规定生地黄含梓醇不得少于0.20%。
The Chinese Pharmacopoeia requires not less than 0.20% catalpol in raw Rehmannia.
本部分信息仅供学术参考，不构成医疗建议。
脾虚湿滞、腹满便溏者不宜使用。
性寒滋腻，脾胃虚弱、食少便溏、胸闷多痰者不宜使用。不宜与萝卜、葱、蒜同食（古训）。
味甘，寒。主折跌绝筋，伤中，逐血痹，填骨髓，长肌肉。作汤除寒热积聚，除痹。生者尤良。久服轻身不老。
上品
@misc{bencaodian-sheng-di-huang,
author = {{Bencaodian Editorial}},
title = {Shēng Dì Huáng 生地黄 (Fresh Rehmannia Root) — Rehmanniae Radix},
year = {2026},
howpublished = {Bencao Dian: A Bilingual Knowledge Graph of Traditional Chinese Medicine},
url = {https://bencaodian.org/zh/herbs/sheng-di-huang},
urldate = {2026-04-09},
note = {CC BY-SA 4.0}
}