I was diagnosed 4 years ago with A FIB during a time when I was on a strong antibiotic for a severe leg infection. After an attempt at conversion I was put on sotolol and warfarin. These were added to the metoprolol I was on for Hocum. Lisinopril was added for blood pressure and things went fine to outward appearances. over the next few years I began to loose body hair, lost interest in sex, had decreased energy levels, and increasing confusion. over the last 6 months the doctors tried lots of tests and never came to any conclusions. 3 months ago I started decreasing the sotolol and felt less foggy and slightly more energetic. 4 months ago I was in a fib at the cardiologists office. I quit caffeine and leveled out. last month I saw him again and he said I had an irregular heartbeat but to quit the sotolol altogether. Since I cut down and quit sotolol my hair started filling back in and my energy level is up. I am actually re-roofing my house. I may be a little slow but I'm 61 not 41 or 21. is there anything bad about sotolol that they are not telling us?