The following consequences may occur after stopping taking hypertensive drugs: i. Drastic fluctuations in blood pressure, manifested as unstable control, can cause headache, dizziness, chest tightness, panic, weakness, sweating, etc. It is necessary to immediately resume the original antihypertensive drugs to control the blood pressure within the normal range, and all the above symptoms can be relieved. Second, after taking certain long-acting antihypertensive drugs and stop taking them for 1-2 days, blood pressure will not produce obvious fluctuations and there may be no obvious clinical manifestations, if more than 1-2 days later, blood pressure will fluctuate drastically due to the completion of drug metabolism in the body. Third, hypertensive crisis may also occur after the sudden cessation of antihypertensive drugs, manifested as intracranial hemorrhage, cerebral infarction, acute myocardial infarction, aortic coarctation, etc. It is recommended to take antihypertensive drugs in a regulated manner and not to stop taking them at will.