What is royhypnol?

Answer 1

It is a date rape drug and it acts like a valium. It was once used for anaesthesia and people with insomnia but now it is used to knock people out.

Answer 2

It appears that "royhypnol" is not a recognized term. It might be a misspelling or a word that doesn't exist in standard language. If you could provide more context or clarify the term, I would be happy to help answer your question.