Ketamine is both a hallucinogen and a dissociative anesthetic used for humans and in veterinary medicine. In low doses, it has been prescribed as a painkiller and to treat burns, and it is also undergoing studies for use in severe depression. It is sold illegally on the streets as a powder similar to the drug PCP. Sometimes called “the date-rape drug,” the odorless and tasteless powder can be mixed into drinks without being detected and causes amnesia in the victim. Ketamine can cause dream-like states, detachment from reality, and hallucinations. Users describe sensations of floating and being outside their bodies. As with any hallucinogenic drug, it should only be used in a guided way under expert supervision.