About Rohypnol®

Drug Classification: Depressant    Drug Schedule: IV     

Addiction Potential: Moderate

Modes of Administration:
Oral (pill or powder)
Intranasal (snorted into the nose)

Onset of Drug Effect(s) and Drug Action(s): Rohypnol® is artificial. It was created in a chemistry lab during sedative medical research.There is no medical use of Rohypnol® in the United States.

Rohypnol® makes users really relaxed, confused, and spaced-out. It can totally take away all inhibitions, making people do things they ordinarily wouldn’t do. Enough Rohypnol® can make people pass out, and even slip into a coma if taken in combination with other drugs or in large doses. Average doses of Rohypnol® take effect in 15-20 minutes and can last up to 12 hours.

Rohypnol® is famous as "the date rape drug.” Because Rohypnol® is tasteless and odorless, many people have slipped it into an unsuspecting person’s drink at a party or a bar, then taken advantage of them sexually when they’re too “out of it” to say no or even really know what’s going on.

There are many other "copycat" drugs also out now - drugs that are similar to, or more dangerous than Rohypnol®, but they act the same way - and people use them to commit predatory acts. Keep your eyes, ears, and instincts alert, and never leave your drink unattended, even for a short period of time.

Acute effects on the mind and body include:

  • Loss of motor control
  • Lack of coordination
  • Blurred speech
  • Respiratory depression
  • Amnesia

A Word about Sexual Violence

Because Rohypnol® can be added to beverages without detection or the consent or knowledge of an unsuspecting person, it has been implicated in incidents of sexual violence. Rohypnol® can render a person incapable of resisting or remembering an assault.

While alcohol is the number one predatory drug, Rohypnol® is usually accompanied by alcohol which creates greater risk for overdose with the subsequent synergistic depressant effects of both drugs.


Villanova University covers the cost of predatory drug testing, but it is critical that the student provide a urine sample within 24-72 hours of the suspected drugging. Predatory drug testing tests for one or all three of the following drugs, depending on the amount of time that has passed: GHB, Rohypnol, and Ketamine.