Thank you to those who replied to my post about urine colour on Flecainide... go for blood test this morning, will keep you posted. Can I just ask, did it work for you in keeping the AF away or at least not as many attacks. This is one of the worst parts for me, not knowing when its going to set off. I am quite symptomatic, dizzy, faint, breathless when in AF, lasting between 20 and 36 hours and then taking a few days to get over it. Thanks again.