narcolepsy
"I took Provigil for about 7 years.  When I was working my insurance covered it.  I had not idea of the price.  It is wonderful medicine but way too expensive if you have to pay for it.  Without any discounts it's approximately $1,300 per prescription.  Am on Medicare now and they will not cover it so am no longer taking.  It was great on keeping me from sleeping all the time and helped a lot with my depression.  Perhaps the price will come down someday and I can start it again.  Highly recommended."