Coracten XL is a brand name for the medication known as Nifedipine, which is classified under a group of drugs called calcium channel blockers. It is primarily used to treat high blood pressure (hypertension) and prevent chest pain (angina). The "XL" in its name stands for "extended release," meaning the medication is formulated to release the active ingredient slowly over time, allowing for once-daily dosing. By inhibiting the influx of calcium ions into vascular smooth muscle and cardiac muscle, Coracten XL helps to relax and widen blood vessels, thereby improving blood flow and reducing the workload on the heart. This mechanism not only helps in lowering blood pressure but also in increasing the supply of blood and oxygen to the heart, which is beneficial in preventing angina attacks. Patients are advised to follow their healthcare provider's instructions closely when taking Coracten XL to ensure its effectiveness and to minimize potential side effects.