I've seen various AF mentions along the way but couldn't find a thread like this but I'm aware that others on NSC have experienced AF and similar problems. I am of course asking here 'on behalf of a good friend'......'they' are 70 and have had a floppy / leaky mitral valve for at least 15 years with no detriment, regularly monitored with echocardiograms, no changes to the point where cardiologist was beginning to think it might have been a very long term defect that just hadn't been picked up when younger. A couple of months ago they had a sudden shift to being much more breathless, an ECG showed AF and a much faster heart rate and an echo is finally scheduled later this month to see if it is a floppy mitral deterioration or something else. In the meantime there's been lot's of scary stroke risk talk and prescriptions of Apixaban, Bisoprolol and Furesomide collected from the pharmacy, fully read up on, but not yet started. They all sound unpleasant and worrying in terms of side effects so I wondered if anyone is prepared to share experiences with (any of) these meds (fully realising that we are all different and that this would just be expressing general opinions and not providing medical advice etc!) I know that if you read the side effects of any meds they can sound worrying but this bunch sound life changing (but hopefully life saving too). Thanks in anticipation.