Investigational nonstimulant Guanfacine XR significantly improved child, adolescent ADHD symptoms
...sults of studies of the investigational medication guanfacine extended release (GXR, previously referred to as S...ceptor agonist. Unlike some other ADHD treatments, guanfacine extended release is not a central nervous system stimulant or a controlled substance and does not ap....... The double-blind study compared the effects of guanfacine and an identical looking placebo pill on 63 male a...ht weeks. At the end of the study, the effect of guanfacine on PTSD symptoms was zero, and there were no differences between men and women or older versus young...