Used primarily to treat high blood pressure (hypertension) and angina (chest pain), this chemical helps relax blood vessels, improving blood flow and reducing the workload on the heart. It is effective in long-term management of cardiovascular conditions and can lower the risk of heart attacks and strokes when used consistently. Often prescribed as a once-daily tablet, it provides steady control of blood pressure throughout the day. It may also be used in combination with other heart medications for enhanced effect.