Hello, Stopping Adderall cold turkey can cause withdrawal symptoms and depression. The dose has to be slowly tapered down over a period of weeks before stopping completely. However, she has to consult with her treating physician to see if stopping Adderall would be ideal. Since she has been diagnosed with attention deficit disorder (ADD), stopping Adderall prematurely can affect her functioning. Hope I have answered your query. Let me know if I can assist you further. Regards, Dr. Lekshmi Rita Venugopal