I'm not sure what you consider to be "high" on amphetamines. I take 20mg Adderall XR and don't feel high. It is amphetamine, so of course you could take more, or take IR, to get more of a rush. As someone in their late 30's, that personally has little appeal to me and I'm past the stage of my life where I'd desire to use amphetamines for that purpose.