well i know what it is, and i've been prescribed twice as much as i took, but i can't remember it because it was about a year ago, so i was asking if it was more of those just worn out kinda effects or if it was the kind that knock you on your ass....i'm starting to feel it, but it'll take probably about 30 mins (based on my system in the past with pretty much every pill) before it will actually give it's fulll effects