- Subjects must meet Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, Text Revision (DSM-IV-TR) criteria for current ADHD subtypes (ADHD combined type, ADHD predominately inattentive type, ADHD predominately hyperactive-impulsive type) as assessed by the clinical interview and confirmed by Adult Attention-Deficit/Hyperactivity Disorder Clinical Diagnostic Scale (ACDS V1.2).