I have been on Flecainide for a couple of months. The medication gave me headaches at first but it stopped by irregular heartbeat and I have not had an episode since starting. I was on 25mg. A couple of weeks ago, I started cutting the pills in half, this stopped the headaches and I still have not had any arythmia. I do not like pills of any sort and have an ablation sheduled but I may cancel because the Flecainide is working well.
I do have one concern, when I first started taking the medication, I felt a little dull and lathargic. I have a concern that if the medication de-sensitizes your heart to minor extraneous electrical impulses, I wonder if it could effect the brain since this runs on electrical impulses. I feel fine now but wonder if effects my mental sharpness at all.