If an overdose of antihypertensive drugs is taken, a drop in blood pressure can occur, and an overdose of different antihypertensive drugs can also cause corresponding toxic side effects. If you take too many antihypertensive drugs, you may experience hypotensive reactions, such as dizziness, weakness, or even symptoms of brain ischemia, such as blackness. At this time, we must pay attention to monitoring blood pressure. If the blood pressure is not too low, we can suspend special treatment, but we should pay attention to avoid strenuous exercise, and we should drink more water to promote the metabolic discharge of drugs. Since the toxic side effects caused by different antihypertensive drugs are also different, so should also should pay attention to monitoring the corresponding indicators according to the different antihypertensive drugs such as overdose, such as antihypertensive drugs containing diuretics, should pay attention to monitoring the blood pressure electrolytes, whether there will be low potassium and low sodium, etc., if it is a beta-blocker overdose, while monitoring blood pressure, should also pay attention to observe the changes in the electrocardiogram. If an overdose of antihypertensive drugs is taken, active treatment should be carried out immediately in the hospital. The discharge of drugs in the body can be facilitated by gastric lavage and diarrhea. In short, it is best to go to the hospital for active treatment if you have taken too much antihypertensive medication.