Hi Dejibo, I am on Tysabri and Medicare is my primary. Medicare pays 80%-it allows for approx $2400-which leaves about $480-which my secondary pays. Without a 2ndary you'd have to pay the balance-maybe something can be worked out with Biogen-I don't know

Thurs was my 36th infusion I do not think about pml. When I started the odds of pml were 1/1000 they are now better. I am a Ty cheerleader...if it hadn't been for this med I know my QOL would not be as good as it is.

Good luck and best wishes,
Linda