This wasn't the question but I think it will be appreciated. Just so people interested in these new "wakefulness promoting agents" know, they are just dopamine norepinephrine re-uptake inhibitors, I am referring to modafinil, nuvigil, provigil and other analogs. Although they are dnri they are very weak, and I would just go as far as to say they suck compared to better chemicals. If you want a good drug for stimulation stick to amphetamine or methylphenidate, if you wan't something long lasting look into analogs of methylphenidate. You want to go with tried and true chemicals which have been around for more than half a decade.