Used in research for its potential as a dopamine reuptake inhibitor, making it of interest in the study of neurological and psychiatric disorders such as depression and attention deficit hyperactivity disorder (ADHD). It has also been investigated for its antiarrhythmic properties, particularly in the context of treating cardiac arrhythmias like atrial fibrillation, due to its ability to block certain ion channels in heart cells. Despite promising early results, clinical development has been limited due to safety concerns, including the risk of QT interval prolongation.