ADHD is marked by a pattern of inattention and/or hyperactivity-impulsivity that affects daily functioning. According to data from the National Comorbidity Survey Replication, the overall prevalence of adult ADHD in the U.S. is 4.4%, and the estimated lifetime prevalence among those aged 18 to 44 years is 8.1%.

Diagnosing, and subsequently treating, adult ADHD requires a multifaceted approach that includes a thorough evaluation, consideration of cooccurring conditions, patient education and weighing of risks and benefits of treatment with stimulants on a case-by-case basis.