Yunnan Baiyao is a traditional Chinese Medicine (TCM) formula used for wound healing, as a pain reliever, and to stop bleeding.
Yunnan Baiyao (YNBY; “White medicine from the Province of Yunnan” in Mandarin) is a well-known proprietary TCM product. The original formula is believed to contain several herbs, with notoginseng as the major ingredient. It is promoted as a dietary supplement that can be used both externally and internally to stop bleeding, or provide relief from minor aches and pains associated with backache, arthritis, strains, bruises, and sprains.
Lab studies suggest that YNBY and notoginseng may help stop bleeding, and have wound-healing, anti-inflammatory, and antimicrobial effects. However, notoginseng may also have blood-thinning properties.
Studies in humans suggest that YNBY may help treat skin or colon ulcers or reduce uterine bleeding. It also reduced blood loss during some surgical procedures. Case reports suggest that topical YNBY used along with conventional treatments may help reduce bleeding in cancer patients, but additional studies are needed to confirm these effects. This product has not been studied as a cancer treatment.
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