Baxin Tong is the trade name of nifedipine controlled-release tablets, the dosage may vary according to the individual’s physical condition, there is no uniform maximum dosage for a day. It is usually taken once a day, one tablet at a time, 30mg tablets or 60mg tablets depending on the circumstances. Nifedipine controlled-release tablets belong to calcium antagonists to dilate peripheral arteries, reduce peripheral resistance and lower blood pressure. Nifedipine controlled-release tablets consist of several drug layers, after oral administration into the body, according to a certain time will be released into the blood layer by layer, so as to achieve 24 hours to maintain a constant blood concentration to lower blood pressure smoothly. Unless special medical advice, adult patients usually take once a day, one tablet at a time, the treatment should be under the guidance of the doctor according to the individual situation to choose 30mg tablets or 60mg tablets, the general initial dose of 30mg per day, according to the control of blood pressure to adjust the dosage. When taking nifedipine controlled-release tablets, it is usually taken with warm water and should not be chewed or crushed. Patients may experience adverse reactions such as increased heart rate, facial flushing, etc. It is contraindicated for those who are allergic to the drug, those who are in cardiogenic shock, and women within 20 weeks of pregnancy. If there is any discomfort, it is recommended to go to the hospital for treatment in time.