Hello everybody! I was diagnosed with AF in March of this year, started out on Bisoprolol, but still had AF almost on a daily basis... I finally gave Flecainide a chance in June, and boy am I gald I did! I started with 100 mg/day, and still had slight AF the first few weeks, so I increased my daily dose to 150 mg at the beginning of July, and I have almost been AF-free since about mid-August!!! It was so nice to feel normal again and not be afraid of being triggered by going up the stairs or over-exerting myself. I knew AF would surely rear its ugly head again sometime, and the day came 2 days ago. I had AF for 4-5 hours in the evening, thank goodness it stopped around bedtime. I think it might be because I am a little anxious about a small surgery I am scheduled to have next week, and general exhaustion with lots going on lately, and the heat... So that evening I took an extra 50 mg of Flec (total of 200 mg that day), and as I was still not feeling right yesterday, I also took 100 mg in the evening instead of the usual 50 mg... Now I'm sitting here tonight wondering what to do, I still feel a bit fluttery, like AF wants to break through again, but I am reluctant to continue taking 200 mg/day... or would it maybe be ok to take 200 mg/day until after my surgery next week, and then go back to 150 mg? Or is there no going back without risking more frequent AF? Do most people have to increase their dose of Flec over the course of time?