Felodipine is a medication that belongs to a class of drugs known as calcium channel blockers. It is commonly sold under the brand name Plendil. Felodipine works by blocking the influx of calcium into the smooth muscle cells of blood vessels, resulting in relaxation and widening of the arteries. This action helps to lower blood pressure and improve blood flow. Here are some key points to know about felodipine: Usage: Felodipine is primarily prescribed to treat hypertension (high blood pressure). It may also be used to manage certain types of chest pain called angina pectoris. Blood pressure control: By dilating the arteries, felodipine reduces peripheral vascular resistance and allows blood to flow more easily, thus lowering blood pressure. It is important to take the medication regularly as prescribed to maintain blood pressure control.Felodipine is a medication that belongs to a class of drugs known as calcium channel blockers. It is commonly sold under the brand name Plendil. Felodipine works by blocking the influx of calcium into the smooth muscle cells of blood vessels, resulting in relaxation and widening of the arteries. This action helps to lower blood pressure and improve blood flow. .