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The dried tuberous root of Rehmannia glutinosa (Scrophulariaceae), processed by steaming with yellow wine. Enters the Liver and Kidney channels. Sweet and slightly warm, it is the foremost herb for tonifying blood, nourishing yin, and replenishing essence to supplement marrow. It serves as the chief medicinal in Si Wu Tang, Liu Wei Di Huang Wan, and Zuo Gui Wan.
由生地黄经九蒸九晒（或酒蒸）制成，由清热凉血转为补血滋阴
滋阴止血，用于虚损性出血
煎服9–15g，大剂量可用至30g；滋腻易碍脾，常配砂仁、陈皮以制之
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.
脾胃虚弱、气滞痰多、腹满便溏者忌用。不宜与萝卜、葱、蒜同食（古训）。
性黏腻滋补，脾胃虚弱者久服易碍运化。腹胀便溏、痰湿内盛者忌用。服药期间忌食生冷。
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-shu-di-huang,
author = {{Bencaodian Editorial}},
title = {Shú Dì Huáng 熟地黄 (Prepared Rehmannia Root) — Rehmanniae Radix Praeparata},
year = {2026},
howpublished = {Bencao Dian: A Bilingual Knowledge Graph of Traditional Chinese Medicine},
url = {https://bencaodian.org/en/herbs/shu-di-huang},
urldate = {2026-04-17},
note = {CC BY-SA 4.0}
}© Bencaodian Editorial · Licensed under CC BY-SA 4.0
熟地黄经九蒸九晒炮制后，梓醇含量降低而多糖及5-HMF增加，具有补血、免疫调节及造血促进作用。
Prepared Rehmannia, steamed and sun-dried repeatedly, has reduced catalpol but elevated polysaccharides and 5-HMF, with blood-tonifying, immunomodulatory and hematopoietic-promoting activity.
滋阴补血、益精填髓，为四物汤、六味地黄丸君药。
Nourishes yin, tonifies blood, and replenishes essence; sovereign herb in Si Wu Tang and Liu Wei Di Huang Wan.
炮制后多糖含量升高，增强免疫和促造血作用为现代主要药理发现。
Processing increases polysaccharide content, which underlies much of its modern immunomodulatory and hematopoietic activity.
《中国药典》熟地黄以毛蕊花糖苷为指标成分。
The Chinese Pharmacopoeia uses verbascoside (acteoside) as a marker for prepared Rehmannia.
This section is provided for academic reference only and does not constitute medical advice.