Xu Xueqing [4] et al. In their research on drugs for treating unstable angina pectoris, the research method is to group patients with the disease by different treatment methods, divided into a control group for conventional treatment and added on the basis of conventional treatment In the treatment group treated with ozagrel sodium for injection, the two groups were treated for a period of 15 days. Based on the observation and analysis of its clinical efficacy, it was found that the clinical efficacy of the control group (the total effective rate was 75%) was significantly lower than that of the treatment group (the total effective rate was 90%).