Adderall comes in a standard-release form that lasts four to 6 several hours and an extended-release variety (Adderall XR) that actually works for as much as twelve several hours. Brand name-name Adderall XR and generic Adderall and Adderall XR are offered as amphetamine/dextroamphetamine and prolonged-release amphetamine/dextroamphetamine. Elev