I take Nuvigil, 150mgs. It is the newest form of Provigil. I was taking 250 but I'd be up for 2 days!

It makes you feel "speedy", if you don't like that you won't like this. It is also an expensive drug, I pay $50 co-pay for a 30 day supply. Due to the hyper effects, I take it very rarely and only when I absolutely need it so 30 pills lasts me a long time.

Edit: OP's post on nootropics made me immediately think of Nuvigil - but it sounds like nootropics don't have that amphetamine-like effect and seem a much safer option for that reason alone. Plus, no prescription.