Adderall 20mg tablet is a prescription medication that contains amphetamine salts in a low-dose formulation. It is primarily used in the treatment of Attention-Deficit/Hyperactivity Disorder (ADHD) and, in some cases, narcolepsy. While the dosage may be considered mild compared to higher strengths, it still belongs to a class of controlled stimulant medications that affect brain chemistry and require strict medical supervision.