My twelve year old son was on Intuniv for the last two months and he gained five pounds. He is not heavy, but not thin either. He has Tourettes, OCD, and ADHD and we are attempting to treat his attention and mood problems which create the most trouble for him. His doctor just prescribed Kapvay and we are slowly taking him off of the Intuniv and will start this treatment on Monday. Thanks for any insight you may have. Sheila