Quality of life assessment: Patients will be asked to fill out the AFEQT quality of life questionnaire at baseline and at the end of each month of the study. The questionnaire at the end of the 3rd month will be administered just prior to stopping the first study drug. The validated questionnaire is comprised of 20 questions about AF symptoms with answers given on a Likert scale. The questionnaire will be provided to the patients in paper format either in person or by mail, as applicable. A follow-up phone call will be made to each patient to ensure that the questionnaire is completed and returned.