Nifedipine can be applied to people with coronary heart disease, and nifedipine itself has the ability to relieve coronary artery spasm and reduce myocardial contractility, which is more suitable for people with coronary heart disease and can prevent angina attacks to some extent. And if coronary artery disease is combined with high blood pressure, it is a relatively good symptom of nifedipine application. For the application of people with coronary artery disease, nifedipine should watch blood pressure, most people with a history of combined coronary artery disease should control blood pressure below 140/90mmHg, and younger patients are recommended to control blood pressure below 130/80mmHg. However, nifedipine has side effects, such as a tendency to increase reflex heart rate, or to develop edema and facial redness. If complications occur, try to switch to another drug.