Brain hypoxia may be caused by cerebral infarction, cerebral hemorrhage, cerebral blood supply insufficiency, chronic hypoxia, etc. For different reasons, we can take medication. 1. Cerebral infarction: patients with cerebral infarction should be treated with early thrombolytic therapy, anti-platelet aggregation therapy, improving microcirculation of blood vessels in the brain, alleviating the symptoms of the disease and preventing deterioration, and the commonly used drugs are: aspirin, nilmacrine, nimodipine and other drugs. 2. Cerebral hemorrhage: patients with cerebral hemorrhage should undergo surgical treatment in time, if they do not meet the indications for surgery, they need to lower the cranial pressure as soon as possible and give neuroprotective treatment. For example, use 20%-25% mannitol 250ML to reduce intracranial pressure and prevent cerebral hernia. 3. Insufficient cerebral blood supply: middle-aged and elderly people are prone to insufficient cerebral blood supply, and most of the patients have a history of atherosclerosis, you can take oral flunarizine hydrochloride capsules to improve blood circulation treatment. 4. If the patient’s brain is chronic hypoxia, memory loss, inattention and disordered thinking may occur, mainly oral olanzapine, piracetam, cytidine diphosphate choline, in order to improve brain metabolism treatment. A variety of causes can lead to cerebral hypoxia, and one should seek medical attention in time to find the cause and treat the symptoms.