Hypertension drugs if taken too much patients will certainly appear blood pressure drop, if a lot more than the normal amount, may not only cause blood pressure down to normal, or even hypotensive state, serious patients may have dizziness, black mask, low blood pressure clinical manifestations, more serious may cerebral blood supply deficiency, stroke, so hypertensive patients need to be careful to take antihypertensive drugs, taking too much will appear adverse side effects. In addition, there are five major classes of antihypertensive drugs, and in addition to the common symptoms that cause low blood pressure, the side effects of taking too much of different antihypertensive drugs are not very similar. If too many beta-blockers are taken, the patient’s heart rate may be particularly slow. The normal heart rate is 60-100 times per minute, but the heart rate may be 40 or 50 times per minute, or 30 times per minute in severe cases, which is a very dangerous situation and requires timely hospital consultation and monitoring. If too many diuretics are taken, weakness and electrolyte disorders may occur. It is recommended to grasp the dose and type of antihypertensive drugs, and must be careful not to take the wrong antihypertensive drugs or overdose, otherwise they can have very serious side effects.