t know the rates for Avonex
and Betaseron but I believe they are similar) . I was in this bottom 3%
and after two attempts, ruling out any other possible culprits (normal baseline, then no alcohol, supplements or any other medication for the trial run on Rebif), I went off Rebif at the advice of my neuro, who treated this all very seriously, and went on Copaxone June of 2008. My liver enzymes promptly returned to normal, and I am tolerating this med well ; it has no neg effect on the liver.