PSMA2 and attention deficit-hyperactivity disorder: There are diverse ADHD treatments, such as psychostimulant pharmacotherapy (methylphenidate [MPH] and lisdexamfetamine), non-stimulant pharmacotherapy (atomoxetine [ATX] and alpha-2 agonists such as clonidine and guanfacine), psychosocial therapy (parental behavioral therapy [PBT]), combination therapy (psychostimulant plus PBT), and alternative/complementary interventions.