Rehmannia

Rehmannia is a traditional Chinese medicinal plant that has been used for centuries. Its use and traditions are deeply rooted within Chinese medicine, particularly in formulas aimed at tonifying the blood and nourishing yin. While specific traditional uses of Rehmannia itself are not extensively documented, it is often included in complex herbal combinations such as Taohong Siwu Decoction. Scientific evidence suggests that compounds found in Rehmannia have a range of biological activities. For instance, rehmannioside D has been shown to prevent estrogen-deficiency-induced osteoporosis by inhibiting osteoclastogenesis and inducing their apoptosis through dual mechanisms. Additionally, SWHQD (a compound derived from Rehmannia) suppresses colorectal cancer via NCOA4/FTH1-mediated ferritinophagy-induced ferroptosis. Furthermore, six key components in Rehmannia-based Taohong Siwu Decoction have been identified as potential quality markers for its antithrombotic effects. In the context of traumatic brain injury (TBI), REA treatment has demonstrated improvements in neurological and cognitive functions, reduced cerebral edema and neuronal loss, and suppressed microglial activation. Safety data indicate that no major issues have been recorded with Rehmannia use. Similarly, there are currently no reported drug interactions associated with its use.

Informational only. Traditional use does not mean proven effectiveness. Evidence and safety vary — check the cited sources.