Everyone's blood pressure rises at a slightly different time, but most patients have two blood pressure peaks, which are from 6 am to 10 and from 4 pm to 8 pm. Generally, it is best to take medicine half an hour in advance during these two periods. The purpose of antihypertensive drugs is to reduce patients' hypertension and prevent a series of critical diseases caused by hypertension. However, due to different patients, the time to take antihypertensive drugs should follow the doctor's advice, and do not blindly use drugs.

Antihypertensive drugs often need to be taken for a long time, but many patients with hypertension are actually not so obedient, because they think that hypertension is actually no big deal, so they don't care too much. They may eat it once when they remember it, but they may not eat it when they don't remember it. This is not only unsatisfactory, but also life-threatening once they take antihypertensive drugs at the wrong time. People's blood pressure has a prescribed normal value. Excessive fluctuation will turn into high blood pressure and you need to take antihypertensive drugs. But if the fluctuation is normal, blindly taking antihypertensive drugs will lead to hypotension.

In the early hours of the night, because of the circadian rhythm, people's blood pressure will be about 20% lower than other times. If you take antihypertensive drugs before going to bed, the already low blood pressure will be further reduced, leading to serious blood supply deficiency in important organs such as heart, brain, kidney and lung, threatening life and even leading to sudden death.

Because most of the causes of hypertension are irreversible changes in blood vessels, antihypertensive drugs will be taken to prevent persistent hypertension from damaging the heart and other blood vessel walls and even causing a series of hypertension complications. Therefore, the essential purpose of taking antihypertensive drugs is to prevent persistent hypertension in the human body. Because human blood pressure fluctuates within a certain range due to biological rhythm factors, we can take antihypertensive drugs before blood pressure is about to rise to avoid excessive blood pressure rise.

This period of hypertension is usually from 6 am to 10, and from 4 pm to 8 pm. However, due to individual differences, it is still necessary to check it carefully and then take the medicine in advance according to the law. Don't wait until blood pressure rises. Even if you feel symptoms, it will have little effect, which goes against the original intention of taking medicine to avoid blood pressure rising.