Used primarily in the treatment of hypertension (high blood pressure). It helps relax blood vessels, improving blood flow and reducing the workload on the heart. Commonly prescribed as a long-acting oral medication, it is effective in managing chronic high blood pressure and may also be used to treat certain cases of angina (chest pain). Its slow-release formulation allows for once-daily dosing, enhancing patient compliance. Often used in combination with other antihypertensive agents when single-drug therapy is insufficient.