The fat-soluble quinone compounds widely exist in organisms. They play an important role in proton translocation and electron transfer in the human respiratory chain. They can be used as activators of cell metabolism and cell respiration, and are also important antioxidants and nonspecific immunoenhancers. They have the functions of promoting oxidative phosphorylation and protecting the structural integrity of biological membranes. The specific effects include: 1. Anti-myocardial ischemia: It can reduce the weakening of myocardial contractility and the reduction of creatine phosphate and adenosine triphosphate during acute ischemia, help maintain the morphological structure of mitochondria in ischemic myocardial cells, and reduce the scope of experimental myocardial infarction, which has a certain protective effect on ischemic myocardium; 2. It increases cardiac output, reduces peripheral resistance, helps to resist heart failure, inhibits the synthesis and secretion of aldosterone and interferes with its effect on renal tubules; 3. Anti-arrhythmic effect: When perfusing isolated animal ventricular muscles under hypoxic conditions, it can shorten the duration of action potentials. The threshold for ventricular arrhythmias measured by electrical stimulation is lower than that of the control group. After the coronary artery is opened, the threshold recovers faster; 4. It reduces peripheral vascular resistance. In addition, it has the effects of resisting the cardiotoxicity of doxorubicin and protecting the liver. About 75% of patients with coronary heart disease can relieve symptoms such as angina pectoris, chest tightness, palpitations, and dyspnea after taking the drug, and the electrocardiogram can be improved. It is helpful in treating ventricular premature beats. In addition, it can be used as an auxiliary treatment for a variety of diseases.