Hello . I have been on flecainide, and bisoprolol for a few years. Do any of you that are on flecainide gain weight with this med? I feel if I didn,t eat at all I would still gain weight.. frustrating. I feel it also gives me phlegm and a cough that disturbed people around me. I eat healthy and like a bird. Any insite into this problem would be helpfull ....thank you.