RXXXXXXXX,

Over the years, I have tried 3 of the 4 CRAB drugs. Avonex that you mix
was the one that I used the most. The premixed didn't work for me.
Don't know why since it is the same medicine, but it didn't keep my MS
under control at all. The kind you did worked very nicely. I have now
started Tysabri so I'm not on any of the others right now. I had my
first dose of Tysabri last Monday so it is way too soon to have any
opinion on how it is doing yet. It is nice to not have any side effects
though.

Is anyone else on the list using Tysabri? Do you like it? Does it seem
to improve things or just keep them from getting worse?