what is guanfacine er
Am Fam Physician. 2011 Feb 15;83(4):468-475. Guanfacine (Intuniv) is an extended-release, nonâcentral nervous system stimulant approved for the treatment of attention-deficit/hyperactivity disorder (ADHD) in children six to 17 years of age; however, it appears to be most effective in children 12 years or younger.