Welcome to NeuroTalk Hindu30 (or is it Hindu31?)
We have a forum just for you, Multiple Sclerosis, at
http://neurotalk.psychcentral.com/forum17.html
and a very active thread about Tysabri. You should check it out. There are many people here who are on, have been, or are starting Tysabri. (I am one of that group!) Lots of people there to answer your questions.
If you have any questions, please feel free to ask...