Dofetilide (Tikosyn) is used to correct irregular heartbeats (arrhythmias). It relaxes an overactive heart and helps improve the heart’s pumping action.

If you need to take dofetilide, you will start taking it in the hospital. This is so your doctor can find the right dose for you and make sure you do not have any problems while taking this medication. Please watch this video for important information about how to take the medication at home.