There is no specific drug for cerebral blood supply insufficiency, and the main drugs for cerebral blood supply insufficiency include antiplatelet aggregation drugs, drugs to improve cerebral circulation, neuroprotective drugs and so on. 1. Drugs against platelet aggregation: For cerebral blood supply insufficiency, anti-platelet aggregation drugs such as clopidogrel and aspirin can be applied, which can help to prevent platelet aggregation, increase the blood supply to the brain, keep the blood circulating smoothly, and improve the cerebral blood supply insufficiency. 2. Drugs to improve cerebral circulation: commonly used drugs in clinic include nimodipine, flunarizine, betahistine, etc., which are good for improving cerebral blood circulation and restoring normal blood supply to brain tissues, thus improving the symptoms of cerebral hypoperfusion. 3. Neuroprotective drugs: Because insufficient cerebral blood supply can easily lead to damage to the brain nerves of patients, therefore, it is necessary to apply neuroprotective drugs, commonly used drugs mainly include piracetam, cytarabine, edaravone, etc., which is helpful to improve the ischemia and hypoxia tolerance of brain tissue cells to protect brain cells and promote the restoration of the brain nerve function. When symptoms related to cerebral blood supply insufficiency occur, it is recommended to consult a doctor as soon as possible, after a clear diagnosis, be guided by a doctor to carry out the treatment, and not blindly use medication on your own.