The common maintenance dose of felodipine extended-release tablets is 5mg or 10mg once a day; the recommended starting dose of irbesartan is 0.15g once a day, which can be increased to 0.3g once a day according to the condition. 1. Felodipine extended-release tablets: used for hypertension, stable angina pectoris, allergic to felodipine or any component of the product is prohibited, acute myocardial infarction patients are prohibited, some patients with flushing with a feeling of heat, ankle edema and other adverse reactions. The common maintenance dose of felodipine extended-release tablets is 5mg or 10mg once a day. 2. Irbesartan: used in the treatment of essential hypertension, hypertension combined with type II diabetic nephropathy, allergy to the components of the product, lactation and pregnant women are prohibited, some patients will have rash, urticaria, angioneurotic edema and other hypersensitivity reactions. The recommended starting dose of Irbesartan is 0.15g once a day, which can be increased to 0.3g once a day according to the condition. The medication must be carried out in accordance with the doctor’s instructions, and if there is any discomfort immediately seek medical attention.