Antihypertensive drugs should be taken in the morning according to the doctor’s instructions according to the individual blood pressure fluctuations, before the peak of the medication can be effective in controlling blood pressure. Usually the human blood pressure generally exists in the day and night fluctuations of the rhythmic, most people’s blood pressure in the morning 2-3 o’clock in the trough level, and in the morning 6-10 o’clock, as well as 4-8 o’clock in the afternoon are in the peak of the stage. According to the rhythmic fluctuation of human blood pressure, it is recommended to take antihypertensive drugs before the arrival of the peak; so the time to take antihypertensive drugs in the morning should be before the arrival of the peak of blood pressure in the morning, according to the fluctuation of individual blood pressure to decide; after taking antihypertensive drugs before the arrival of the peak of blood pressure, it will take a certain amount of time to reach the peak of blood pressure concentration to play a role in the effect of blood pressure lowering. If you have abnormal blood pressure, please go to the hospital in time for consultation and active treatment, so as to avoid delaying your condition.