Hi Keely, and welcome to the forum.

I think you will find the "no sugar coating" straight goods discussed in the following threads (and LINKS). Everything that has happened with Tysabri, since the get-go, has been discussed in these postings:

http://neurotalk.psychcentral.com/thread39760.html

http://neurotalk.psychcentral.com/thread37891.html

There are many people that seem to be doing very well on Tysabri . . . but since the drug is still fairly new, there are new potential risks and concerns brought to light as time goes on. None may ultimately be of concern, but weighing up the pros and cons is important.

Once you go through those two threads (and links), you can decide what you want to research further, for your own piece of mind.

Cherie