While long-acting stimulants can improve the driving safety of adolescents with attention deficit/hyperactivity disorder (ADHD), they could wear off in the evening when severe vehicular collisions are more common. A team led by Daniel J. Cox, University of Virginia Health Sciences Center, Department of Psychiatry and Neurobehavioral Sciences, investigated the non-inferiority of 2 long-acting psychostimulants on driving performance in young adults with ADHD.