ISOSORBIDE-5 MONONITRATE SR 60mg tablets are a sustained-release formulation of isosorbide mononitrate. They are used to prevent and treat angina (chest pain) by relaxing and widening blood vessels, improving blood flow, and reducing the heart's workload. The sustained-release (SR) formulation provides a prolonged effect, helping manage angina symptoms over an extended period. These tablets are typically taken once a day for long-term management.