amphetamines

a common side-effect of extensive use of cocaine or amphetamines

AMPHETAMINES OR SPEED, MORE LIKE CRANK,METH,GLASS

OR abuse like I do, make sure you still take it in the early morning!\r \r -If you are a dumbass and think it would be cool to pop 90mg at 3 on a Sunday afternoon, you will probably writing a definiton of Vyvanse at 4:53 in the fuckin morning, like I am.\r \r -If you want to use it recreationally I'd recommend between 90mg-270mg depending on how much of a tolerance you have to amphetamines..