Seriously damaging drugs for the brain are rarely used clinically, but some potentially damaging drugs for the brain, mainly vasodilating antihypertensive drugs, hemostatic drugs, diuretics, sedatives, anti-arrhythmic drugs, etc. 1, antihypertensive drugs: taking too large a dose of antihypertensive drugs or taking fast-acting strong antihypertensive drugs, such as captopril, nifedipine, can cause a sudden and substantial drop in blood pressure, resulting in poor blood supply to the brain, prone to the formation of cerebral infarction, especially in patients with cerebral vascular stenosis should be more vigilant; 2, hemostatic drugs: if the patient is accompanied by atherosclerosis, hyperlipidemia, blood viscosity, if large doses of hemostatic drugs, such as adrenochromone Tablets can cause psychiatric symptoms and induce abnormal brain electrical activity in epileptic patients, while 6-aminocaproic acid, etc. can contribute to the formation of cerebral thrombosis; 3, diuretics: the elderly or people with stenosis apply diuretics, such as furosemide, etc., have a rapid hypotensive effect, which can lead to a large number of urination, resulting in a reduction in blood volume and increased blood viscosity, prone to the formation of cerebral infarction; 4, sedative drugs: drugs with strong sedative effects, such as chlorpromazine Chloral hydrate, magnesium sulfate, etc., such as the application of excessive, can affect respiration and blood pressure, resulting in cerebral tissue ischemia, hypoxia; 5, anti-arrhythmic drugs: such as phenytoin sodium, verapamil, etc., too fast sedation can be a drop in blood pressure, bradycardia, resulting in decreased cerebral perfusion, headache, vertigo, and even cerebral infarction.