Sheep anti-Flunitrazepam polyclonal antibody for ELISA. Suitable for use in ELISA. Each laboratory should determine an optimum working titer for use in its particular application. Other applications have not been tested but use in such assays should not necessarily be excluded.Flunitrazepam, a benzodiazepine derivative, is a powerful hypnotic drug It is also known as Rohypnol and sometimes used as a date rape drug. It has powerful hypnotic, sedative, anxiolytic, and skeletal muscle relaxant properties.