Statins are a kind of lipid-lowering drugs widely used in the cardiovascular field, and the commonly used statins are: atorvastatin, lovastatin, resuvastatin, simvastatin, etc. These drugs have the effect of lowering blood lipids as well as stabilizing atherosclerotic plaques. Side effects such as liver function abnormalities, rhabdomyolysis and allergy may occur in some people during drug administration. 1. Effects (1) Dyslipidemia: Patients suffering from hypercholesterolemia or hypertriglyceridemia can take the drug orally to lower lipids. (2) Arterial plaque formation: some patients with plaque formation in arterial vessels can take this drug orally to stabilize the plaque and prevent it from falling off. (3) Cardiovascular and cerebrovascular diseases: cardiovascular and cerebrovascular atherosclerosis, as well as caused by stroke, coronary heart disease patients need long-term oral statin drugs to prevent angina attacks. 2.Side effects (1) transaminase elevation: liver function should be monitored during the drug, and alanine transaminase should be detected 2 weeks after the drug is taken. (2) Elevated creatine kinase. (3) Allergy: the most common are itching of the skin, facial flushing, and hives may also occur. The side effects of drugs vary from person to person, there are individual differences, after taking the drug if there is discomfort need to go to the hospital in time to avoid delaying the condition.