My son is 6. He was diagnoses with ADHD two years ago. We have since been on 8 meds. stimulant and non stimulant. Recently we went through extensive testing and discovered he has a learning disability, generalized anxiety disorder and a possible auditory processing disorder. He showed to be above average intelligence but still struggles so hard with school work. He is on concerta 36mg, and we just aded kaypav yesterday. he took his first night dose. The stimulant meds increase his anxiety which was causing obsessive behaviors. Hopefully the new med will help. Has anyone had similar problems? When did you start noticing improvements, and what kinds of side effects did you notice? Thanks.