Hi Dr. Amen and coaches. Thank you for all your good work. I find it difficult to distinguish how taking methylphenidate for ADD via a psychiatrist’s prescription would not cause the same brain damaging effects as abusing it as a street drug. Of course the amount would be carefully prescribed and the source would be reliable. I am hoping Dr. Amen you might be able to clarify this area because a psychiatrist may be prescribing that for me in the near future. Thank you