i have been on rhythmol for 9mos now. i am post ablation for atrial fib/flutter. after 6mos my cardiologist said my heart is in sinus rhythm now. it tool 6mos and a 30 day monitor because i was and am having exercise intolerance. too much (shopping and on my feet for a long time) will make me weak to a point of having to sit down and recover only to have it again if i continue. i feel close to fainting as i did once after ablation in our yard. my dr. has taken be off coumadin, cardizem, and has reduced my rhythmol. it's still happening occasionally. that reduction was on 12/17, wonder if those drugs are still in my system. i am still on toprol xl (100) and he added 325 aspirin a day.