narcolepsy
"My experience has been very positive: a complete elimination of sleep attacks, at least until the medication wears off (I take it at about 7 AM and usually around 2-3 PM I can tell it's worn off). When I first began the medication, I experienced fairly severe insomnia at night for a few days and suffered from headaches (generally dull, low-grade ones) for a couple of weeks. Those problems have long since ended and I have no trouble falling asleep at night.



My doctor suggested not taking the medication on weekends, when I do not have to work, which seems to have helped prevent it from losing any effectiveness. I am fortunate enough to have had no trouble getting my insurance to pay for Nuvigil. My cost is $27 for a 3 month supply by mail."