Soybean sapogenins are mainly extracted from legumes, such as kudzu, red clover, alfalfa, and other substances in this class. It contains soybean flavin, which has obvious anti-hypoxia effect. So it is very good in the cerebral infarction patients, the therapeutic effect is very good. But in myocardial ischemia or arrhythmia patients, the therapeutic effect is not so ideal, most of them are used for the treatment of cerebral infarction patients. Because it can improve the degree of hypoxia of brain cells, dilate the blood supply of cerebral blood vessels, increase cerebral blood flow, and can also reduce vascular resistance, reduce blood viscosity, improve microcirculation, which can improve the blood supply of the brain. But for the heart, its effect is not particularly obvious.