何首乌系蓼科植物何首乌的干燥块根.为常用中药之一。入药时有生首鸟、制首乌两种炮制规格.生首乌是由采挖时将鲜首乌切片干燥而得,制首乌是由生首乌加辅料反复蒸晒而得。生首乌与制首乌虽然同源一物,但其作用却截然不同。生首乌 Polygonum multiflorum is the dry root of Polygonum multiflorum. It is one of the commonly used traditional Chinese medicines. At the time of medicine, there are two kinds of raw materials: first bird and Shouwu. The raw material of Shouwu is obtained by digging the fresh Shouwu slice and drying it. The Radix Scutellariae is obtained by repeatedly sunning the raw Shouwu and accessories. Although the birthplace of Shouwu and Shouwu are homologous, their roles are quite different. Shouwu