I am a 23 year old female who was just diagnosed with ADD- mainly inattentive. I'm taking concerta (18 mg.) and I was wondering if anyone experienced weight loss with it (adults)? Also, I may have to switch to Adderall, because of insurance reasons, and was wondering if anyone has taken both of these, and which one they liked better.(and did you lose weight on adderall?) So far I do not notice a differance in my attention span (I've been taking concerta everyday for 9 days) and I do not really a loss of appetite, like most people do.