Both nifedipine extended-release tablets and amlodipine are calcium antagonists among the blood pressure lowering drugs, and there are other drugs in this category such as nifedipine and felodipine. It is impossible to distinguish between nifedipine extended-release tablets and amlodipine, as long as the patient’s blood pressure drops very well and smoothly during the use of blood pressure lowering drugs, then this drug may be good for the patient. However, nifedipine extended-release tablets must be taken as a whole, not broken, broken up, or chewed, and the time between doses must be 12 hours. Amlodipine, on the other hand, is a long-acting blood pressure-lowering drug that can be taken once a day.