paroxysmal supraventricular tachycardia
"I've had Paroxysmal Supraventricular Tachycardia for 4 years. It got so bad I was in incessant PSVT, one episode right after another for hours at a time. Had two cardiac ablations. I've been on other meds, like Cardizem, Toprol. Nothing works to stop PSVT like Flecainide. I only take 50mg once a day, instead of the usual 50 mg twice a day and that works for me with no noticeable side effects. Without it, I would have to get a pacemaker."