GHB, rohypnol and ketamine have become known as "predatory" or "date rape" drugs because they are used to incapacitate someone for the purposes of committing a crime, often sexual assault. These drugs are odorless and colorless and can easily be slipped into someone's drink. They can cause dizziness, disorientation, loss of inhibition and a loss of consciousness. They can also produce amnesia, causing a victim to be unclear of what, if any, crime was committed. These drugs are particularly dangerous when combined with alcohol, although alcohol alone is still the drug most commonly associated with sexual assault.