I was only on Amiodarone for a short time after my MI (along with a dozen or so other new pills). The a-fib was constant for a few weeks. Then stopped except for a monthly recurrance. But, because of anticipated side-effects, the Amiodarone was discontinued. A year later, with almost continuous a-fib again, I had an ICD (defibrillator) implanted, and was primed for an upcoming Tikosyn (Dofetilide) trial. Less risky, but it requires a few days of hospitalization at the start. Guess I'm not very optimistic, but willing to give it a try, if it is unlikely to worsen my condition!!