Chinese Medicine Regulatory Office

Radix Rehmanniae

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Source^#

Radix Rehmanniae is the fresh or dried root tuber of Rehmannia glutinosa Libosch. (Fam. Scrophulariaceae). The drug is collected in autumn, removed from root stock, rootlet and soil, used either in fresh state or baked to almost dry. The former is known as “Xian Dihuang” (Fresh Rehmannia Root) and the latter is known as “Sheng Dihuang” (Unprocessed Rehmannia Root).
Radix Rehmanniae Praeparata is the processed Rehmanniae Radix.

Actions^#

Radix Rehmanniae: Clear heat, cool the blood, nourish yin and engender fluids;
Radix Rehmanniae Praeparata: Nourish blood, replenish yin, replenish the essence and the marrow.

Plant Specimen

Chinese Materia Medica Specimen

Decoction Pieces Specimen

# Reference is made to the Pharmacopoeia of the People’s Republic of China (2015 Edition)