My difficult children are 11-year-old twin girls. I started out being their fosterparent when they were 2 months (bio mom, drinking and drugging and dad an alcoholic) and they've been with me ever since. Recently the older twin (by six minutes) started acing very angry. Over the top angry. Anger very much out of proportion to the situation. Younger sister provokes her. She is the quiet but sneaky one who lights the fuse and stands watching the fallout. She has ADHD/Learning Disability (LD)'s and the younger girl has ADD/Learning Disability (LD)'s. Older is in Special Education, younger one just getting by but in regular classes. Older girl was recently switched from Adderal XR 25 to Vyvanse 50. The Adderal was not getting her through her homework and family time, dinner, etc. Now the doctor has prescribed Resperidal in addition to the Vyvanse. Has anyone had any experience with Resperidal or the combination of Vyvanse and Resperidal. I'm a parent who is very leary about medication and I research it to death before trying. Any suggestions or past experiences would be greatly appreciated.