Rohypnol : Gay & Black Glossary

a colourless, odourless drug manufactured by Hoffman-La Roche that makes the person given it either unconscious or groggy. They are unable to remember events. Typically males drop it in the drinks of women then rape them. The appeal is the victim offers no resistance. Presumably, otherwise the victim would strongly reject the males. This is similar to necrophilia, with the additional motivation of the victim being unable to identify the attacker. I was astonished to learn the Rohypnol is the number one drug seized at the Canadian—US border.

It is legitimately used as a sleep aid. The three drugs most commonly used for DFSA (Drug Facilitated Sexual Assault) are alcohol, GHB (gamma-hydroxybutyric acid) and benzodiazepines (such as flunitrazepam, also known as Rohypnol or roofies).