A central nervous system stimulant (see amfetamine drugs; stimulant drugs) sometimes used to treat narcolepsy. It is also used in children with attention deficit hyperactivity disorder. Because of its stimulant properties, dexamfetamine has become a drug of abuse. With prolonged use, the stimulant effects lessen and a higher dose must be taken to produce the same effect.
(dexamphetamine) n. see amphetamines.
pl. n. a group of *sympathomimetic drugs that have a marked *stimulant action on the central nervous system, alleviating fatigue and producing a feeling of mental alertness and wellbeing. Dexamfetamine (dexamphetamine) is used in the treatment of *narcolepsy and in selected cases of *attention-deficit/hyperactivity disorder in children. Side-effects include insomnia and restlessness. *Tolerance to amphetamines develops rapidly, and prolonged use may lead to *dependence; these drugs should not be used to treat depressive illness or obesity.... amphetamines