My husband has been on flecainide for A-Fib for about 5 years. He regularly sees his GP, Cardiologist, and Urologist for headaches, severe allergies with drainage (he went on weekly shots a year ago), sleeplessness (tried the CPAP), general body weakness, flushing, incontinence, erectile disfunction, and the facial paralysis I asked in my question. The other symptoms have been listed by others but the facial paralysis I have not seen. Trusting the advise of the cardiologist, we did not research the drug until recently and were shocked. Afraid to discontinue the drug for fear of a stroke, we have to wait for an appointment next month with the cardiologist.