Ketamine (KET), a chemical relative of phencyclidine (PCP), is a general anesthetic that undergoes intravenous or intramuscular administration. Ketamine street names include:

• Purple
• Kit Kat
• Special K
• Tranquilizer

When taken in large doses, ketamine causes hallucinations and symptoms of dissociation. Ketamine is an effective painkiller which should not be used outside of professional medical supervision.