Anyone use a drug called Provigil

My friend gave me this drug called Provigil. It is a histamine agonist, as opposed to histimine blocker which is Claritan or Benedryl, used for narcolepsy and ADD. It is not related to any amphetamine derivative like Ridalin or Adderal. He said taking it really gets you going, but without the high and jidders from clen, sudafed, or any ephedra based drugs. He said it intensifies your work outs and just keeps you motivated. Has anyone tried this. Seems like a safe pick me upper for sluggish days. I can't think of anything harmful yet? What dah all think?

PS. And no it does not cause watery eyes or runny nose. I asked the same thing? :lift: