Rohypnol (Flunitrazepam) Information in Pakistan – Uses Rohypnol contains flunitrazepam, a potent sedative-hypnotic from the benzodiazepine class. It has been used in some countries for the short-term treatment of severe insomnia and for pre-anesthetic sedation. In many regions, including Pakistan, it is strictly regulated or not approved for general medical use due to its high potential for misuse and dependence.