arrhythmia
"I had gone through a two year period of Atrial Fibrillation almost constantly.  I had two ablations.  I was loading up on Tikosyn when I started going in and out of Normal Sinus.  After the second dose I converted.  Prior to Tikosyn I had been Cardioverted, with paddles, over 30 times.  In the two and a half years since I've been on Tikosyn I've needed that procedure once.  Only complaint is how dangerous it can be if you take it too soon after last dose."