Taking nifedipine extended-release tablets may cause symptoms of rapid heart rate. Nifedipine extended-release tablets of the original drug for nifedipine, nifedipine has the role of vasodilatation, vasodilatation will appear after the drop in blood pressure, can be reflexive heart rate acceleration. Clinical oral nifedipine extended-release tablets, some patients may be more sensitive to the drug, after taking the drug will appear obvious heart rate, accompanied by symptoms of facial flushing, for the intolerance of patients to follow the doctor’s instructions to reduce or stop the drug in time, such as high blood pressure, can be added to reduce tachycardia drugs at the same time. For patients without tachycardia after oral nifedipine tablets, there is no need to adjust the dosage of the drug, you can follow the doctor’s advice to continue to take. Nifedipine extended-release tablets can also appear red face, dry stools, lower limb edema and other adverse reactions, allergic to drug components, severe aortic stenosis, patients taking rifampicin is prohibited. If you need to use the drug need to be standardized under the guidance of a doctor. When discomfort occurs after using the drug, please consult the hospital in time to avoid delaying the condition.