Flecainide
"Have had paroxysmal atrial fibrillation for 14 years, Now age 67. Took "pill-in-a pocket" approach (200 mg flecainide initial dose at onset of symptoms, 100 mg every 12 hours thereafter, and 50 mg of atenolol every 24 hours. Episodes would typically last 4 to 24 hours. Hard to say whether the medication shortened episodes when used in this manner..

After recent PV ablation failed to eliminate AF episodes, started taking 100 mg of flecainide daily and it seems to prevent episodes (2 months so far). If this keeps up, flecainide will restore my quality of life."