In an attempt to give this question a serious answer, the official rules of WWTBAM said nothing about "performance-enhancing drugs", and I can't imagine another game show would either. Quizzing is not a physical sport, and there's a difference between Adderall and Google.
WWTBAM did however have a rule regarding the taking of any medication in the studio. I was told I couldn't even have ibuprofen.
So long story short, Adderall may be disallowed on studio grounds, but if it ran afoul of any rules, it wouldn't be S&P related.