If brain infarction patients have intracranial vascular stenosis and arterial plaque formation, especially when the nature of the plaque is unstable, patients need to take Lipitor for long-term lipid-lowering, plaque stabilization and endothelial protection treatment to prevent the formation of cerebral thrombosis in patients and to avoid the aggravation of cerebral atherosclerosis in patients. If the cerebral infarction is not caused by cerebral arteriosclerosis, such as fat embolism or cardiogenic embolism, the patient does not need to take Lipitor for a long time. In this case, the patient should take oral anticoagulant drugs to prevent the occurrence of brain infarction, for example, if the patient is suffering from atrial fibrillation or rheumatic heart valve disease that causes dislodgement of the attached wall thrombus, the patient should take oral rivaroxaban or warfarin for anticoagulation treatment to prevent the dislodgement of the thrombus and prevent the patient from having brain infarction.