Prescriptions are the main form of traditional Chinese medicines (TCMs). Theory of compatibility is the essential part of TCM prescriptions. In order to develop the advantages of TCM, it is necessary to clarify the effective substances of TCM by means of modern science and technology. In this paper, the refined Xuefuzhuyu (XFZHY) prescription was taken as an example to study the chemical changes of all components, pharmacological changes and the effective compounds in the compatibility. It laid a...