narcolepsy
"I have Narcolepsy with Cataplexy and am currently taking Provigil during the day when I first wake up. I have noticed that my Cataplexy attacks are fewer but it doesn't stop them all. I still have at least 3 big attacks a week. I have found that I am more alert taking Ritalin but have more cataplectic attacks. I am currently working with my doc to up the dosage because the 200mg are not enough. I have had some side effects with the medicine. Mood Swings, becoming fixated on a task or project, confusion, headache and some depression. I am currently a full time student and for me taking Provigil to prevent attacks vs being more alert is the best option for me at this point."