Analysis of the active components and metabolites of Taohong Siwu decoction by using ultra high performance liquid chromatography quadrupole time‐of‐flight mass spectrometry

Taohong Siwu Decoction is a classic Chinese medicine prescription for treatment of cerebral ischemia and gynecological diseases. However, the active ingredients of Taohong Siwu Decoction have not been identified. In this study, a ultra performance liquid chromatography quadrupole time‐of‐flight mass system was used to analyze the active components and metabolites of Taohong Siwu Decoction absorbed into the blood and the brain. A total of 39...