Objective:To study the protective effect and mechanism of Xinfuning No.V(XFN-V)on myocardial ischemia/reperfusion injury (MIRI).Methods:Using MIRI model of rat to observe the activity of superoxide dismutase(SOD)and glutathione peroxidase(GSH Px),content of malondialdehyde(MDA)in the ischemic area,change of myocardial structure and the influence of XFN-V on these in- dices.Results:In the XFN-V group,the activity of SOD and GSH-Px were higher and content of MDA was significantly lower than those in the model...