The methods of reducing the dosage of antihypertensive drugs can be to reduce the dosage of antihypertensive drugs, to reduce the types of antihypertensive drugs or to adjust the interval of dosage reduction. 1. Reduce the dosage of antihypertensive drugs: If the blood pressure is well controlled for a long time, or if the blood pressure is low, the dosage can be reduced to one-half or one-third of the original dosage as instructed by the doctor, and then adjusted appropriately according to the blood pressure. 2. Reducing the types of antihypertensive drugs: Subtract one of the 2~3 types of antihypertensive drugs you are taking, and monitor the changes in your blood pressure afterwards. 3. Interval of dosage reduction: Most of the hypertensive patients are taking long-acting antihypertensive drugs, and it takes 2~4 weeks for them to exert the best effect. Therefore, the dosage reduction of antihypertensive drugs usually takes 2 weeks as the interval cycle of dosage reduction. The principle of using antihypertensive drugs is to start with a small dose, prefer long-acting preparations, combine drugs and individualize the use of drugs. Therefore, whether to reduce the dosage should be based on different patients’ blood pressure control, unauthorized dosage reduction or discontinuation of medication, easy to cause blood pressure fluctuations, bringing harm to the body. Therefore, the dosage reduction of antihypertensive drugs should be carried out appropriately and slowly under the guidance of specialists and through the observation of blood pressure.