GS967 is primarily utilized in the field of cardiology for its potential to treat arrhythmias. It functions as a late sodium current inhibitor, which helps in stabilizing the electrical activity of the heart. This makes it particularly effective in managing conditions like atrial fibrillation and ventricular tachycardia. By reducing the excessive sodium influx during the cardiac cycle, GS967 aids in maintaining a regular heart rhythm, thereby decreasing the risk of sudden cardiac events. Its application is also being explored in other cardiac disorders where abnormal sodium channel activity is a contributing factor. Ongoing research continues to investigate its efficacy and safety in broader therapeutic contexts.