Yes, but take a look at the side effects of Ritalin below.
Side effects Reported methylphenidate abuse side effects include psychosis (abnormal thinking or hallucinations), difficulty sleeping, mood swings, mood changes, stomach aches, diarrhea, headaches, lack of hunger (leading to weight loss) and dry mouth
Methylphenidate or Ritalin Mood swings and hallucinations? It sounds mind altering?
It sounds like something the ancient people would do, yes?

interesting...