It comes in pill form and is ten times more powerful than Valium. Common names include Roofies, Roche, Rib, Roachies and Stupefi. Rohypnol can be fatal, especially when combined with alcohol. It is illegal in the United States. Rohypnol is odorless, colorless, and tasteless and dissolves within seconds in any type of beverage. Within 15 to 30 minutes of taking the drug, a person can experience the following symptoms:

mental confusion/dizziness
hot and cold spells
nausea
inability to speak clearly
decreased blood pressure
drowsiness
amnesia which can last up to eight hours.

The effects of Rohypnol peak within two hours, can last 8-12 hours and may not fully wear off for several days.