Propafenone
"I'm a 29 yo male who has had Supra Ventricular Tachycardia since I was 22. I've been on metoprolol ever since I was diagnosed. Over the past year I started having episodes of Atrial fibrillation, right when I started medical school. I was hesitant about an ablation, so my doc tried 150mg Propafenone every 8hr and it's been helping! I still take the metoprolol, but at a lower dose (to prevent 1:1 conduction), and it works great. I still get anxiety occasionally at night when I lay down and feel my heartbeat, but that's only because I was used to it happening every night. I'll probably still get the ablation, but I'm in no rush!"