Felodipine (Felostal 5 ER) is an extended-release tablet containing 5mg of felodipine, used primarily to treat high blood pressure (hypertension) and angina (chest pain). The extended-release formulation allows for a gradual release of the medication over time, helping maintain consistent blood levels. The tablet comes in a pack of 100 tablets. It works by relaxing and widening the blood vessels, making it easier for the heart to pump blood.