Headache after taking nifedipine controlled-release tablets, to clarify the cause of headache, if the blood pressure control is poor, too high or too low, you need to adjust the antihypertensive drugs to stabilize blood pressure; if the headache is caused by oral nifedipine controlled-release tablets of this drug, you need to change the antihypertensive drugs. If the headache is caused by oral nifedipine controlled-release tablets, the patient should be hypertensive. After taking this drug, if the blood pressure is still too high and cannot be controlled, or if the blood pressure drops too low, it may cause headache, and then it is necessary to monitor the blood pressure and adjust the drug to stabilize the blood pressure normally, which can improve the headache. After oral nifedipine controlled-release tablets, if the blood pressure control is normal, but the patient has a headache, may be caused by the drug, nifedipine controlled-release tablets for calcium antagonists, has the effect of dilating blood vessels, sensitive patients sometimes headache, this situation is recommended to discontinue the use of this drug, replacement of enalapril, temsirolimus, and other types of blood pressure lowering drugs. Headache after taking nifedipine controlled-release tablets, it is recommended to go to the cardiology or neurology department to clarify the cause and adjust the treatment.