My son is 7 with Down Syndrome and his GP started him on intuniv in Nov 14 for behavioral issues and attention deficit. Since approx. Jan my son has had stuttering, difficulty expressing himself verbally and rolling his eyes back into his head when trying to get his words out. His Speech Therapist is very concerned. I'm wondering if any other child has had any of these side effects? She said it was a sign of frustration and was wondering if his med slowed the brain, and slowed his speech?? Thank you.