Rohypnol is a benzodiazepine sedative-like drug that is a widely prescribed sedative/hypnotic in Europe, but is not licensed for sale in the United States. This drug has gained the reputation as being a "date rape" drug due it its powerful hypnotic effects that induce a sleepy, relaxed, almost drunk feeling that lasts up to eight hours. Nicknamed "roofies", rohypnol has been widely abused and its use now carries heavy penalties. The drug is mildly addictive and has several serious side effects upon withdrawal: headache, muscle pain, hallucinations, and convulsions.