How long after stopping hypertension medication does rebound occur?

Blood pressure may rebound 3 to 7 days after stopping antihypertensive medication, although the exact timing of rebound is not particularly fixed. The details are as follows:

Due to individual differences in physical condition and severity of hypertension, the time at which blood pressure rebounds after discontinuation of medication may vary. If blood pressure has been poorly controlled and the daily diet is frequently high in fat, a rebound effect may occur around three days after stopping the medication. However, if blood pressure has been well-controlled and the daily diet does not primarily consist of high-fat foods, rebound may not occur until 5 to 7 days after discontinuation.

Patients with hypertension normally require antihypertensive drugs to relax vascular smooth muscles and reduce myocardial contractility, thereby lowering blood pressure. After stopping the medication, the smooth muscles may contract intensely again, significantly increasing blood flow pressure within the vessels, leading to blood pressure fluctuations and elevated blood pressure. Therefore, patients should not discontinue their medications on their own, as sudden increases in blood pressure may lead to cardiovascular and cerebrovascular complications.