lol lack you dont want to knwo hwo much amphetamine i ingest in order to get high i dont think then..
under 40 never got me high either (of DEX) or at least actual high, although taking it as directed for a few months probably is partially why that happened, i remember the first day i took dexedrine.
yup, other than snorting what i was told was adderall in 8th grade once, first time on amphetamines...
last i knew you're SUPPOSED to take magnesium daily.
it halps replenish your dopamine levels.
dopamine levels aren't the only cause of tolerance though...