1-(1-phenylcyclohexyl)piperidine, PCP, was initially made to be used as an anesthetic

1. 1-(1-phenylcyclohexyl)piperidine, commonly abbreviated as PCP (and known in the street as "angel dust"), is a hallucinogenic that was initially patented in 1952 by the Parke-Davis pharmaceutical and marketed as an anesthetic.

1-(1-phenylcyclohexyl)piperidine