People, stop with the "well if you're taking it like you're supposed to, you don't have to worry about anything,..." crap.   Everybody knows that most the questions on here are addicts like myself wonder for reasons so obvious, that it's OBVIOUS...  Hello?  I wanna know also... How long Adderall stays in the blood stream.  I don't wanna here from some professional nurse that's hidding a drinking problem or hidding the fact that she steals medication from the med room everyday, I wanna hear answers to the questions.  THAT'S WHY IT'S CALLED,...'ANSWER.COM"  So let's move on shall we?  Who knows how long Adderall stays in your blood?  Approx. how long would it take for Adderall, if taken one time in a large dose (say 30 mg) to clear the blood if blood were taken from your veins and checked?