Adderall made my DD who does actually have ADHD a little crazy. I cringe to think what it might do (at large doses) to someone who is "normal".

Some of the meds are more addictive than others. For instance the patch she is on now does not reach peak blood level concentrations til 9 hours after it is put on. It kicks in gradually and wears off gradually. So no one would get a high from it.