I've had Afib since 2007 and have been on flecainide from the beginning. It controls my afib extremely well. Occasionally I have only minor fluctuations in rhythm that last for only a beat or two, then back into regular rhythm. I'm very happy with flecainide. I have no side effects with it, do not have to take it with food, and it's a cheap drug. Am also on Eliquis - that's the drug that is a killer on the wallet.