Whether the medication for hypertension can be stopped after taking it depends on the type of hypertension and it depends on the actual situation. If it is primary hypertension, it is recommended not to stop the medication at will because most patients need to take the medication for life; there are also a very small number of patients whose blood pressure is normal and can be discontinued because of lifestyle improvement and other reasons. In the case of secondary hypertension, after removing the cause, if the blood pressure drops to normal, the discontinuation of antihypertensive drugs is determined according to the opinion of the treating physician. Hypertension can be divided into three levels according to blood pressure, 1, 2, 3, and low risk, intermediate risk and high risk according to the severity of cardiovascular risk. low to intermediate risk patients with grade 1 hypertension can first use lifestyle improvement and need to initiate medication if their blood pressure still does not meet the standard; for high risk patients immediately initiate medication, but intermediate and high risk hypertension require immediate initiation of medication. Commonly used antihypertensive drugs include calcium antagonists, angiotensin-converting enzyme inhibitors, angiotensin receptor antagonists, diuretics, and beta-blockers. 1, diuretics: through sodium excretion, reduce extracellular volume and lower peripheral vascular resistance. Such as tachyphylaxis, dihydrochlorothiazide. 2, beta-blockers: through the inhibition of central and peripheral RAAS (RAAS that is, renin-angiotensin-aldosterone system), inhibition of myocardial contractility and slowing the heart rate to play a hypotensive effect. Such as metoprolol, bisoprolol. 3.Angiotensin-converting enzyme inhibitors: The antihypertensive effect is mainly through the inhibition of circulating and tissue angiotensin-converting enzyme, so that angiotensin II production is reduced, and at the same time, the inhibition of kinase so that bradykinin is reduced. Such as benazepril, lenopril, etc. 4, angiotensin II receptor blocker: by inhibiting angiotensin II receptors, more fully and effectively block the vasoconstriction, water and sodium retention and remodeling effects of angiotensin II. Such as valsartan, temisartan, etc. 5, calcium channel blockers: by blocking calcium channels to reduce extracellular calcium ions into the vascular smooth muscle cells, reducing the contractile response of resistance vessels. Such as amlodipine, nifedipine, etc. Although long-term use of antihypertensive drugs may have certain drug side effects, the impact of these side effects is very small compared to the benefit of lowering blood pressure and blocking damage to vital organs such as the heart, brain and kidneys. Moreover, even if side effects of a certain antihypertensive drug occur, other classes of drugs can be adjusted to continue controlling blood pressure. Therefore, do not discontinue antihypertensive medications at will.