Hello there.
I can understand your concern.
Tysabri slows the worsening of symptoms of MS and also decreases the relapse.
I don't know what side effects you are worried about.
Also nothing can be done about the price.
If you can take it then fine or else is your choice.
We don't decide the price.
Best regards.
Answered2017-07-10 17:06:38
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