Revelations - S3-E11
Factual error: After the agents meet with Kevin's father in the mental institute, Scully lists the medication that he is on: haloperidol, loxapine, and chlorpromazine make sense, but the fourth medication - LARGACTIL - is in error. Not only is it a brand-name of chlorpromazine, but it is not available in the USA, it is a CANADIAN drug. (00:36:10)
Answer: He was being facetious. He doesn't specifically know that information, he was merely giving examples of the types of information he has access to.
I think so too.
lionhead