Blood pressure that is low in the morning and high in the evening can be regulated in several ways. If the patient is taking an antihypertensive drug once a day and when it is taken around 7-8 a.m., the frequency of the drug can be increased appropriately and another antihypertensive drug can be added around 17-19 p.m. to suppress the appearance of high blood pressure peaks in the evening. For example, if the patient used to take a rapid antihypertensive drug, it can be replaced with the same type of extended-release agent, for example, if the patient used to apply nifedipine tablets, he can take nifedipine extended-release tablets, which have the effect of 24-hour continuous antihypertensive effect. If the patient does not have enough antihypertensive drugs, he can also take different types of antihypertensive drugs at the same time, for example, if the patient used to take calcium antagonists, he can add ACEI or ARB class drugs to take together.