There is no so-called correct time to take antihypertensive drugs, when patients can take antihypertensive drugs according to the type of antihypertensive drugs and their own blood pressure fluctuation characteristics and other factors to determine. Each hypertensive patient’s dynamic blood pressure situation, peak and trough blood pressure elevation and other data are unique and different, so there is no absolutely correct time to take medication, as long as the medication is taken at the time that best suits their condition, it can have a better therapeutic effect. For example, the majority of hypertensive patients have a normal blood pressure rhythm, with double peaks and valleys, the blood pressure is lowest at 2-3 am, has a peak at 6-8 am and 4-8 pm, and slowly decreases after 8 pm. The medication can be taken in advance according to this pattern. However, for patients with large fluctuations in blood pressure, it is recommended that short-acting antihypertensive drugs be used only before the peak based on 24-hour blood pressure levels, while avoiding hypotension caused by drugs. The different dosage forms of various drugs also make the taking time different, such as ordinary tablets, enteric-coated tablets, slow-release tablets, controlled-release tablets, dispersible tablets and so on. Therefore, before taking antihypertensive drugs, hypertensive patients must consult a professional doctor and follow the doctor’s instructions under his guidance, take the drugs on time and in accordance with the amount of time, and do not arbitrarily change the dosage and time of taking the drugs, so as not to cause serious adverse consequences.