why does the fda allow all these medicines to be prescribed when there are so many side effects? medicine is supposed to make you feel better not worse. I am on metoprolol along with warfarin for a fib and with this i have experienced about 80% of the side effects from metoprolol, especially being tired, dizzy and have a constant buzzing in my ears . I spend a lot of time in bed because I don t feel good and that is weighing heavily on me because I have always been very active and I cant stand the way I m feeling. I saw my dr on the 3rd of sept and he told me to stop the metoprolol. so I did the next day and about 3:30 pm that day my hear started racing. I checked it at 112 beats per minute so I took a half of metoprolol and laid down and it slowed to 76. my heart has not beat that fast in about two years and it is usually beating in the 60 s and sometimes in the 70 s. the dr said we might try bisoprolol if stopping the metropol doesn t work. im really scared and confused as to what I should do. im of the opinion if the disease doesn t kill you the medicine will. no one in my family had a fib. I also feel my heart pause for a second or two and then it starts up again. the dr said the pausing is benign and not to worry about that. I guess im really confused about what exactly is a fib. does your heart just race and what does palpations mean exactly. am I a candidate for the catheterization of the heart? my a fib is intermittent. my name is carol white and im 72. my email is YYYY@YYYY . thank you for your help