depression
"Provigil then Nuvigil (slightly less expensive) helped save my life.  Took Provigil first, switched to Nuvigil (same effect), for 6.5 years now.  Day one value, no side effects as far as I know.  Still same dose (250mg Nuvigil, equivalent of 200mg Provigil), never increased or decreased.  Effect same today as day one.  Note:  I've been on a "cocktail":  20mg Lexapro and 1mg Klonopin daily, plus daily mindfulness meditation and weekly CBT. But 6.5 years of lovely life after 3 terrible episodes of major depression in under 6 years.  Certainly have ups and downs, but not severe and brief.  If I run out for a few days I'm grumpier, less resilient but Nuvigil greatly clarifies my thinking and energizes me.  It's not for all, but miracle for me."