Statins usually have lipid-lowering and non-lipid-modulating effects and can be used to treat patients with primary hypercholesterolemia, coronary artery disease, or high-risk diseases such as coronary artery disease in combination with hypercholesterolemia. 1. Lipid regulation: statins are HMG-CoA reductase inhibitors with a variety of lipid regulating effects. They can not only reduce the concentration of total cholesterol and LDL cholesterol in the blood, but also increase the concentration of HDL cholesterol. It belongs to more comprehensive lipid regulation drugs, clinically used in the treatment of familial hypercholesterolemia or mixed hyperlipidemia patients. 2. Non-lipid regulating effect: statins also have the effect of improving vascular endothelium, antioxidant, anti-inflammatory, etc., which can stabilize atherosclerotic plaque and slow down the process of atherosclerosis. It is an important drug for the prevention and treatment of coronary heart disease and ischemic stroke. It can be used in patients at high risk of coronary heart disease, such as diabetic patients and other patients with hypercholesterolemia or mixed dyslipidemia. When patients take statin drugs, they should be used under the guidance of a doctor to avoid causing adverse reactions.