Adderall 20mg XR is an extended-release formulation of the medication Adderall, which is commonly prescribed to treat Attention Deficit Hyperactivity Disorder (ADHD) and narcolepsy. The "XR" stands for extended release, which means that the medication is designed to release slowly over time, providing a prolonged effect that helps to manage symptoms consistently throughout the day.

Like its immediate-release counterpart, Adderall XR contains a combination of amphetamine and dextroamphetamine. These are stimulant drugs that increase the activity of certain neurotransmitters in the brain, such as dopamine and norepinephrine. These neurotransmitters are essential for regulating attention, impulsivity, and hyperactivity, making Adderall XR an effective treatment for controlling the symptoms associated with ADHD.