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Phencyclidine (a complex clip of the chemical name 1-(1-phenylcyclohexyl)piperidine, commonly initialized as PCP), also known as angel dust and other street names, is a recreational, dissociative drug formerly used as an anesthetic agent, exhibiting hallucinogenic and neurotoxic effects. Developed in 1926, it was first patented in 1952 by the Parke-Davis pharmaceutical company and marketed under the brand name Sernyl