Vyvanse (lisdexamfetamine dimesylate) is a central nervous system stimulant approved by the FDA for the treatment of ADHD in both children and adults. It works by affecting the chemicals in the brain and nerves that contribute to hyperactivity and impulse control. Since its introduction, Vyvanse has gained a reputation for its ability to provide lasting relief from ADHD symptoms, allowing individuals to focus better and improve their daily functioning.