New clinical guidelines call strongly for providing psychosocial supports for children and adolescents with complex attention-deficit/hyperactivity disorder (ADHD). Developed by the Society for Developmental and Behavioral Pediatrics (SDBP), the guideline provides a framework for diagnosing and treating complex ADHD in these age groups. Its recommendations complement existing ADHD guidelines from the American Academy of Pediatrics (AAP). The new guideline is published in a supplemental issue of SDBP's Journal of Developmental and Behavioral Pediatrics.