"hands down the worst medication i&#039;ve ever tried. my psychiatrist suggested trying a newer adhd drug but i was enamored by some of the reviews i read on here so i persuaded him to prescribe me dexedrine. well what a big mistake. i was given 10mg of dexedrine and after two weeks of it working it completely backfired. it completely ruined my cognitive abilities. i couldn&#039;t do simple math, my depth perception was off, and my time perception was off as well. i was constantly late to appointments, i had to write down everything on the calendar on my phone otherwise i will forget or think i have more time than i actually had. i would be careful with this medication. it might work for you though."