Adderall is one of the medication that is a first-choice medication used to treat attention deficit-hyperactivity disorder (ADHD). Adderall blue pill 20 mg contains the instant-release (IR) and XR forms of dextroamphetamine and amphetamine salts. Adderall is available as a tablet and as an extended-release capsule (Adderall XR) that comes in varying doses, ranging from 5 mg to 30 mg. The medication starts to work within 45 minutes, but only lasts for up to 4 to 6 hours, so you might need more than 1 dose each day. Generic Adderall XR 20 mg Blue capsule can get Nuheals site easily.