After a cerebral infarction, taking nifedipine extended-release tablets II plus Benadryl hydrochloride 10 mg, after 7 hours, the blood pressure is always high again, you can adjust the number of times of taking antihypertensive drugs or add other antihypertensive drugs. Specific medications should be used according to the doctor’s instructions. Benadryl hydrochloride is a long-acting preparation, taken once a day, can choose to take in the morning when you wake up. Nifedipine Extended-Release Tablets II is a medium- to long-acting antihypertensive drug, which can be taken twice a day according to the principle of medication, once in the morning, at the same time with Benadryl hydrochloride, and then again in the afternoon, which can be taken at around 6 o’clock in the afternoon to effectively control the peak of blood pressure in the afternoon. If the blood pressure is still high after taking nifedipine extended-release tablets II in the afternoon, diuretics such as hydrochlorothiazide can also be added. During the period of taking antihypertensive drugs must be more monitoring of blood pressure, if the blood pressure control is not good, timely to the hospital to adjust the drug, according to the doctor’s instructions to take medication.