If the patient is diagnosed with hypertension, after taking antihypertensive drugs for a period of time blood pressure control is good, four drugs can be reduced, mainly by reducing the dose, adjusting the interval between the time of taking, reducing the type of antihypertensive drugs in three ways to reduce the dose, but the first method is mainly. 1. Reduce the dosage: reduce 2 tablets to 1 tablet for each previous dose, reduce 1 tablet to half a tablet for each previous dose, and so on. 2. Adjusting the interval between doses: from daily to every other day, or from morning and evening to only once a day (note that the dose remains unchanged). 3. Reduce the types of antihypertensive drugs: reduce the original four antihypertensive drugs to three of them. Patients with high blood pressure should take antihypertensive drugs under the guidance of the doctor, do not adjust the medication without authorization, in order to avoid adverse consequences.