Attention deficit disorder (ADD) in adolescents has received scant attention when compared with that given to children. With or without hyperactivity, ADD does not disappear at puberty and is an important factor in scholastic and social failure in adolescents. As a condition associated with decreased metabolism in the premotor and prefrontal superior cerebral cortex, ADD in adolescents responds well to treatment with stimulants, tricyclic antidepressants and monoamine oxidase inhibitors. Nonpharmacologic modalities such as behavior modification, individual and family therapy, and cognitive therapy are useful adjuncts to psychopharmacologic management. Without effective treatment, ADD often results in increased risk of trauma, substance abuse and conduct and affective disorders during adolescence, and marital disharmony, family dysfunction, divorce, and incarceration in adulthood. Properly treated with medication and counseling, adolescents with ADD succeed as well as their peers.