Nifedipine, clinically known as nifedipine, is a calcium antagonist drug, commonly used in the treatment of angina pectoris. The main ingredient of nifedipine is nifedipine, which has the effect of relaxing vascular smooth muscle and increasing coronary blood flow, and is mainly applied to the treatment of angina pectoris, such as variant angina pectoris; unstable angina pectoris, etc., and also has a certain antihypertensive effect on hypertension. However, the drug should be taken under the guidance of a doctor to avoid taking the drug privately. Nifedipine after taking dizziness, headache, nausea, fatigue and other uncomfortable symptoms to stop the drug in time, when the symptoms worsen to the hospital. If you are allergic to nifedipine, it is forbidden to use it, and you should pay attention to monitoring your blood pressure during the period of taking it.