In the 1960s, PCP became commercially available for use in as an analgesic and anesthetic; diversion to street use, however, led the manufacturer to discontinue production in 1978.

In the 1960 s, PCP became commercially available for use in veterinary medicine as an analgesic and anesthetic, but diversion to street use led the manufacturer to discontinue production in 1978

Explanation:

Phencyclidine is said  to have received its name PCP—“peace pill”—on the streets of San Francisco .There are more than one hundred variations (analogs) of this  substance

In the year  1960, PCP became commercially available for use in veterinary medicine as an analgesic and anesthetic, but diversion to street use led the manufacturer to discontinue production in 1978

PCP is now produced easily and cheaply in clandestine laboratories in tablet, capsule, powder, and liquid form and sometimes sold as LSD  Like methamphetamine, PCP has been distributed by outlaw motorcycle clubs