Ralozine 500 mg SR is a sustained-release formulation of ranolazine, a medication primarily used to treat chronic angina (chest pain) in patients with coronary artery disease. This extended-release version allows for once or twice-daily dosing, providing a consistent therapeutic effect over an extended period. Ranolazine works by improving blood flow to the heart muscle and reducing the heart's oxygen demand, which helps alleviate angina symptoms. It is often used in conjunction with other antianginal medications to enhance overall treatment efficacy. Patients are advised to follow their healthcare provider's instructions regarding dosage and administration to achieve optimal results while minimizing potential side effects.