The University of Arizona

History, Pharmacology, and Prevalence
Overview of Various Other Illicit Drugs:

Rohypnol is the brand name for Flunitrazepam, a central nervous system depressant that belongs to a class of drugs known as benzodiazepines.  In a single 1- or 2-mg dose, Rohypnol can reduce anxiety, inhibition, and muscular tension with a potency that is approximately 10 times that of diazepam (Valium).[1]  It is similar to GHB in the sense that it can incapacitate victims so that an assailant can force sexual assault.  Also, if Rohypnol is ingested, it can cause individuals to forget the events they experienced while under the effects of the drug.[2]

The short term effects of Rohypnol include [1]:

  • Anterograde amnesia
  • Lack of muscular control
  • Loss of consciousness
  • Hypotension
  • Visual disturbances
  • Confusion
  • Urinary retention
  • Aggressive behavior

The long term effects of Rohypnol can include dependence [1].

Street names for Rohypnol include roofies, ruffies, rophies, poor man’s quaalude, Mexican valium.



  • (1) Gahlinger PM. Club drugs: MDMA, Gamma-Hydroxybutyrate (GHB), Rohypnol, and Ketamine. American Family Physician 2004 Jun 1;69(11):2619-26.
  • (2) NIDA. Rohypnol and GHB. Rockville, MD; 2007 Jun.


  • ="Rohypnol"/