Nifedipine extended-release tablets are a blood pressure lowering medication and are recommended to be taken 1-2 times/day at 10-20mg/time. If taking 1 time/day, it is recommended to take it in the morning after meal. If you take 2 times/day, it is recommended to take once in the morning after meal and once in the afternoon around 3pm. Here I would like to remind you that first, nifedipine extended-release tablets are an extended-release preparation, and because of its extended-release formulation, the entire tablet needs to be taken with warm water, not broken, broken up, or chewed. Second, taking nifedipine extended-release tablets, there is a typical adverse reaction is easy to cause facial redness, face feeling hot and other symptoms, this symptom will gradually disappear with the extension of the time to take the drug and the increase in the number of doses. If tolerated can continue to take, if not tolerated, it is recommended to consult a physician or pharmacist to switch the drug. Third, nifedipine extended-release tablets can also cause gum growth, so we need to pay attention to keep the oral cavity clean. Fourth, nifedipine extended-release tablets can also cause edema in the ankle, and we are reminded that the edematous ankle can be padded with quilts or solids when resting, with the affected foot placed on top.