Chemydur 60XL is a pharmaceutical formulation designed for the treatment of various cardiovascular conditions, particularly for managing angina pectoris and hypertension. It contains the active ingredient isosorbide mononitrate, which belongs to a class of medications known as nitrates. Chemydur 60XL works by relaxing and widening blood vessels, which helps to reduce the workload on the heart and improves blood flow. The "60XL" indicates that each tablet is formulated to release 60 mg of isosorbide mononitrate in an extended-release manner, providing a consistent therapeutic effect over an extended period. This medication is typically prescribed to be taken once daily, and it's important for patients to follow their healthcare provider's instructions closely to optimize treatment outcomes and minimize potential side effects.