The present invention provides compositions and methods of using α2 adrenergic receptor agonists as treatments for ADHD. The α2 adrenergic receptor agonist for use with these methods is a benzimidazole derivative, and may be specifically N-(4,5-Dihydro-1H-imidazol-2-yl)-7-cyano-4-methyl-1H-benzimidazol-5-amine acetate. Formulations and routes of administration are also described.
