Taking antihypertensive drugs leads to an accelerated heart rate, which can be seen with dihydropyridine calcium channel blockers. The main effect of dihydropyridine calcium channel blockers is to dilate blood vessels, and dilating blood vessels can reflexively lead to an accelerated heart rate. In addition, for taking antihypertensive drugs, if there is a rapid decrease in blood pressure, it can also lead to reflexive heart rate acceleration, mainly as a compensatory mechanism. Our first-line five major antihypertensive drugs include calcium antagonists, beta-blockers, diuretics, angiotensin-converting enzyme inhibitors, angiotensin receptor antagonists, of which, the effect of accelerated heart rate after taking antihypertensive drugs include dihydropyridine calcium channel blockers and diuretics, diuretics can produce postural hypotension, etc., and lead to an accelerated heart rate.