Adderall is available in a regular-release kind that lasts four to six hours and an extended-release form (Adderall XR) that actually works for up to 12 hours. Model-title Adderall XR and generic Adderall and Adderall XR can be obtained as amphetamine/dextroamphetamine and extended-release amphetamine/dextroamphetamine. Referring to ADHD with yo