kitkat - I also have a daughter with Aspergers, who did have a trial of ADD medication and it didn't cause any particularly troubling side effects, but it didn't do much for her either so we stopped quite quickly (as compared to my daughter mentioned above with ADHD-i, for who medication was really quite like a magic switch). However, despite it's ineffectiveness for my child with Aspergers and ADD like symptoms (and yours), I also know a number of children with both Aspergers and ADHD for whom stimulants have had a profound positive effect (and most of them now that I think about it, are boys).