Adderall 20mg is a prescription medication that contains a combination of amphetamine and dextroamphetamine, two central nervous system stimulants. It is commonly prescribed to treat Attention Deficit Hyperactivity Disorder (ADHD) and sometimes narcolepsy. The 20mg dosage is considered a moderate to high strength, often used when lower doses (such as 5mg or 10mg) are not providing sufficient symptom control. This medication works by increasing levels of dopamine and norepinephrine in the brain, helping improve focus, attention span, alertness, and impulse control. Adderall 20mg is typically available in immediate-release (IR) form, which begins working within 30 to 60 minutes and lasts about 4 to 6 hours. There is also an extended-release (XR) version that provides effects for up to 12 hours. Because it is a Schedule II controlled substance, Adderall 20mg has a high potential for abuse, dependence, and addiction if not used responsibly.