My daughter is 15 years old and has been diagnosed with ADD inattentive type. She was started out on Vyvanse 30 mg then increased to 40 mg. We did not see any improvement with her symptoms, although she lost 10 pounds in 6 weeks and she was already thin. We switched to Adderal XR 20 mg, and have gone to up 25 mg, still no results. Anyone have any advice?