The normal activity of the brain needs enough blood circulation. If the artery in one part of the brain is completely blocked, there will be ischemia, hypoxia and necrosis of the brain tissue in that part, which will form cerebral embolism. Generally, there will be a history of cerebral arteriosclerosis, hypertension, hyperlipidemia, and hyperglycemia. Patients may suffer from dizziness, nausea, vomiting, disturbance of consciousness, and hemiplegia. Thrombolysis can be performed with urinary hormone enzyme within six hours of onset. If drug maintenance is required for more than six hours, platelet aggregation drugs such as aspirin, atorvastatin, drugs to reduce blood lipids, promote blood circulation and remove blood stasis can be taken orally, For example, Naoxintong capsule and ginkgo leaf can be used.