Rohypnol (flunitrazepam), also known as roofies, is a sedative in the same recreational drug family as GHB and ketamine and the same prescription drug family as Valium, Halcion, Xanax, and Ativan.
Rohypnol known as a predatory drug, though it has gained popularity as a recreational drug. Generally colorless and odorless, it has been linked to numerous incidents of sexual assault because it is a fast-acting sleeping pill that can be slipped into a drink and leave the victim with little or no memory of the incident.