Guanfacine extended-release (Intuniv® and generic) is a central alpha 2a receptor agonist that is FDA-approved as a treatment for ADHD both as: – Monotherapy and – As an adjunct to a stimulant medication. The Prescribing Information for guanfacine extended-release notes that its efficacy in the treatment of ADHD was established in children and adolescents 6…