Felodipine is a more commonly used drug for lowering blood pressure, and the effect of lowering blood pressure is still very good. Usually it is mainly used orally, the dosage should be individualized, the medicine should be swallowed with water in the morning, and the tablets should not be broken or chewed. When it is used for hypertension, it is mainly recommended to take 5mg once a day as the beginning of the therapeutic dose, the common maintenance dose is 5mg-10mg once a day, according to the patient’s response to the dose will be reduced or increased, or the addition of other antihypertensive drugs, the dosage adjustment between the general not less than 2 weeks. At the same time, this felodipine can treat angina pectoris, when treating angina pectoris, it is recommended that 5mg once a day as the beginning of the therapeutic dosage, and the common maintenance dose is 5mg-10mg once a day. In the course of treatment, some patients may experience some side effects, such as swelling of the legs or a generalized rash, and if this occurs, the drug must be discontinued in a timely manner. However, if there is no discomfort, Felodipine can be taken for a long time and for life.