Rohypnol is an intermediate-acting benzodiazepine with general properties similar to those of Valium (diazepam). It is used in the short-term treatment of insomnia, as a pre-medication in surgical procedures and for inducing anaesthesia. Like other benzodiazepines (such as Valium, Librium and Xanax), Rohypnol’s effects include sedation, muscle relaxation, reduction in anxiety, and prevention of convulsions.