Ruffies The Date Rape Drug They’re called "roofies," "R-2s," "rib," "rope," "The Club Drug," "Mexican Valium." The clinical name is Flunitrazepam, but it’s the effect that is important. It’s called the "date rape drug" because one of its most frightening and dangerous uses is to commit sexual assault: a drug slipped into a drink without the victim’s knowledge. Roofies are tasteless, colorless, odorless, and they dissolve in liquid within seconds. When the drug is taken or ingested alone