multiple sclerosis
"I have been taking Avonex for close to 16 years and my biggest fear in the world is losing access to it. I started on Betaseron but had to stop because of injection site reactions and severe flu symptoms.  I had been through everything. Complete invalidity, lying in a hospital bed to basically healthy with no noticeable symptoms at all. But since being on the Avonex, I have only very minor exacerbations , less than one per year. In the last 10+ years, I have not missed any work or cancelled any vacations for MS issues. My only problem is the cost."