Soluflazine is primarily utilized as a potent antiarrhythmic agent, specifically targeting cardiac rhythm disorders. It functions by blocking sodium channels in the heart, which helps stabilize electrical activity and prevent irregular heartbeats. This makes it particularly effective in managing conditions like atrial fibrillation and ventricular tachycardia. Additionally, its selective action on cardiac tissues minimizes adverse effects on other organs, enhancing its therapeutic profile. Soluflazine is often employed in clinical settings where precise control of heart rhythm is critical, offering a reliable option for patients with complex arrhythmias.