Used primarily as an antiplatelet agent to prevent blood clot formation, especially in patients who have undergone heart valve replacement or suffer from coronary artery disease. It helps improve blood flow by inhibiting platelet aggregation. Often combined with other medications like aspirin to enhance efficacy in stroke prevention. Also utilized in cardiac stress testing, where it mimics the effects of exercise on blood flow, helping diagnose coronary artery disease. Some studies explore its potential in antiviral therapies due to its ability to interfere with viral replication.