This is from the @Tysabri website.

https://www.tysabri.com/en_us/home/join-biogen-support/financial-support.html

The Above MS™ program  from Biogen gives you access to Support Coordinators who can help you understand your insurance coverage and try to identify the best financial assistance solution for you. Our goal is that no one has to forego treatment based solely on financial limitations.
Financial and insurance services include:

Benefit investigation to clarify your coverage options
Insurance counseling to help you understand your coverage, along with help navigating changes due to the healthcare reform law
$0 Copay Program with no income requirements and no enrollment time limit for eligible patients.* Call(Phone number can only be seen by the question and answer creators) to see if you're eligible
Infusion Copay Assistance for eligible patients†
Free Drug Program for eligible patients in need
Support finding assistance through charitable organizations

Contact your doctor. There are many programs that will help or even pay for it. Your doctor should hook you up with the pharmacy department. They can even put you in for a clinical study

Thank you very much for the information. My brain just gets fried dealing with this stuff.

FYI Biogen offers a complomentary tysabri dose for people who are awaiting prior authorization completion. They dont advertise it widely but finally after speaking for weeks with people from Touch and AboveMS one the associates told me. If you speak to Biogen ask for it and/or let your infusion center know. You will need to notify Biogen 5 days prior to infusion appointment for them to certify it. Something that took me forever to find out from them hence the reason Im telling you directly to ask for it if need be.

Thank you very much.