s not so much an issue of how long he has been on
medication, but rather an issue of finding the best
medication for him (i.e., the
medication that proves to be clinically effective without untoward side effects). Stimulant medications (e.g., Concerta, Ritalin, Adderall, Metadate, etc.) all have the potential to suppress appetite. This in itself is not always a problem. It becomes a problem if it leads to persistent weight loss.