What is Phencyclidine? Phencyclidine, otherwise known as PCP, is a hallucinogenic, dissociative drug that comes in the form of a white crystalline powder or a clear, yellowish liquid. It’s often referred to as angel dust, amp, rocket fuel, and animal tranquilizer, among other names. Introduced as an intravenous anesthetic in the 1950s, the drug is […]