Patients with cerebral infarction can take lipid-lowering drugs and should take them for a long time. At the same time, it is necessary to pay attention to the observation of LDL level, such as intracranial large blood vessels with stenosis, it is necessary to control the level of LDL below 1.8 mmol/L, to ensure that it is lower than the level of the normal people, in order to prove effective control of the disease. Lipid-lowering drugs have fewer side effects. Individual patients may experience abnormal liver and kidney function, muscle pain symptoms, and need to stop taking the drugs immediately. In addition, when taking lipid-lowering drugs for the first time, liver function and creatine kinase should be rechecked after 4-8 weeks to clarify the effects of the drugs and whether there is any damage to the liver, kidney and other organs. If side effects occur after taking lipid-lowering drugs, the drug should be discontinued in time, and blood lipids should be rechecked regularly to adjust the dose appropriately.