Narcolepsy
"I was diagnosed a year ago. I have cataplexy as well. I&#039;ve been taking 250mg daily of Nuvigil for about 8 months and I&#039;m very happy with it. The only complaint is that (as another person said) it doesn&#039;t last all day, I also crash out in the afternoon. If you have this problem I suggest eliminating idol time. I have noticed that if I keep myself busy I have no problem going through the day normally. I haven&#039;t experienced any side effects whatsoever.  Most of the other medications may keep you awake all day, but seeing as the side effects can be devastating for many people, I&#039;ll take the extra effort to keep my idol time to a minimum and unlike the other medicines I&#039;ve tried, I don&#039;t feel like I need a higher dose every 3 months."