atrial fibrillation
"It stopped my PACs  (Preatrial contractions ). I was on this med for 13 years.  Over three years ago I started having increased muscle weakness, episodes of collapsing or falling without knowing why or even a warning that I was going to fall, extremely dry eyes (OTC eye drops were ineffective), severe muscle spasms, back pain, increased diarrhea, swelling in hands and feet, and pinpoint red spots on my skin.  I looked up the side effects of this med and I had 24 of the adverse effects!!  I had become so weak that I had to use 2 walking sticks, could hardly get in or out of bed, couldn't walk a 100 ft.  I quit taking this med which I thoroughly believe was killing me. I have begun to feel much better regaining some of my muscle strength and have less back pain."