Patients with cardiovascular and cerebrovascular diseases need to take statin for a long period of time. Patients with purely elevated cholesterol can suspend the drug after their blood lipid level reaches the standard and then decide according to their condition. Cholesterol is a risk factor for cardiovascular and cerebrovascular diseases. Patients with definite cardiovascular and cerebrovascular diseases need long-term oral statin therapy to keep the LDL level below 1.8 mmol/L, and the medication cannot be suspended even if the cholesterol level is normalized. For patients with simple elevated cholesterol levels, without any risk factors, the drug can be temporarily discontinued after the cholesterol level returns to normal, and the statin can be discontinued by strengthening dietary control, reducing the intake of high-fat foods, and monitoring cholesterol indices, such as stabilizing the blood lipid level. The main effect of statins is to inhibit cholesterol synthesis. Adverse effects of the drugs include dizziness, nausea, diarrhea, muscle aches, joint pain, elevated transaminases, etc. They are contraindicated in patients who are allergic to the components of the drugs, have unexplained elevated liver enzymes, or have severe liver function impairment. If there is any discomfort, consult a doctor in time and use the drug as prescribed by the doctor.