"after two hours of taking  this at 60 mg, i feel nothing! i have never been on any other adhd meds except  this one. i&#039;ve only been prescribed this medication two months ago and doc told me to take it once a day, everyday. i never abused it and never will. i am an avid runner and i run 3 to 5 miles everyday ever since i was 16, now i am 30 years old. i am also a serious health  conscious person. i know that this drug is to be metabolized in your liver before becoming active but i feel like this medication  goes through me too fast, like drinking water! i get more benefits  for my cognition problems with brintellix!  this might be one of those cases where i might be  better on adderral. i never experienced a crash on this drug."