Flecainide
"Have had AF since very young. In 2003 episodes began to occur almost daily. Was given Flecainide and after 6 weeks I was a different person - I had forgotten what it was like to go each day without even a skipped beat. I even exercised daily, quite hard too with no problems. Unfortunately, after 6 years, I started experiencing "side-effects". I was actually suffering from a Broad Complex Arrhythmia brought on by Flecainide. I had to stop them and now on Bisoprolol. Am now awaiting a PVI ablation"