Rohyphnol (Flunitrazepam)


What is Rohyphnol?

Rohypnol® is a powerful benzodiazepine and acts as a central nervous system depressant. It has become widely known as the  “date rape” because it has been used to sedate potential victims. In a medical setting, it has been used to treat insomnia  and a precursor to anesthesia in some countries outside of the U.S. Rohypnol® is a trade name for flunitrazepam, a central nervous system (CNS) depressant that belongs to a class of drugs known as benzodiazepines. Flunitrazepam is also marketed as generic preparations and other trade name products outside of the United States. Like other benzodiazepines, Rohypnol® produces sedative-hypnotic, anti-anxiety, and muscle relaxant effects. This drug has never been approved for medical use in the United States by the Food and Drug Administration.

Cut-Off Levels (ng/mL)

200, 300 ng/mL (Urine)

50, 300 ng/mL (Saliva)

Window of Detection

2 Hrs. – 3 Days (Urine)

1 – 2 Days (Saliva)

How is it Used?


Royphonol® is commonly taken orally in tablet form but has also been used to sedate potential rape or sexual assault victims by dissolving the tablet in liquid. It has been known to be insufflated nasally.

What are the Effects?

Benzodiazepines suppress the central nervous system causing sever drowsiness and sleepiness. Amnesia and spouts of memory lapse are common among users and these effects are increased with larger doses. High doses of Rohypnol®, particularly when combined with CNS depressant drugs such as alcohol and heroin, can cause severe sedation, unconsciousness, slow heart rate, and suppression of respiration that may be sufficient to result in death. 

Common Street Names

  • Circles
  • Forget Me Pill
  • La Rocha
  • Lunch Money Drug
  • Mexican Valium 
  • Pingus
  • R2
  • Roach 2
  • Ruffies
  • Rophies
  • Wolfies

Common Symptoms

  • Drowsiness
  • Sleepiness 
  • Amnesia 
  • Irritability
  • Vidid Dreams
  • Shallow Respiration
  • Dilated Pupils
  • Week and Rapid Pulse
  • Coma
  • Death 

What does it Look Like?

Small white tablet. Royhpnol also comes in long oblong shaped tablet that is green in color and contain traces of blue dye inside of them. This was manufactured to combat potential sexual assaults or other crimes related to some one being unknowingly dosed with the drug.  It is otherwise odorless and tasteless leaving it difficult to know when consumed. 

Legal Status

Rohypnol® is a Schedule IV substance under the Controlled Substances Act. Rohypnol® is not approved for manufacture, sale, use, or importation to the United States. However, it is legally manufactured and marketed in other countries. Penalties for possession, trafficking, and distribution involving one gram or more are the same as those of a Schedule I drug.

Testing Options

  • Integrated Urine Cup Test
  • Urine Dip Card Test
  • Oral Fluid Test

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