|1926||Phencyclidine (PCP) is first synthesized. 1|
|mid 1950s||Parke Davis begins investigating PCP as a human anesthetic. 2|
|1957||PCP tested for the first time on 64 human subjects. Worrying side effects such as hallucinations, mania, delirium and disorientation manifested. 2 [Details]|
|1963||PCP is patented as a surgical analgesic and anesthetic under the name 'Sernyl'. 3|
|1965||PCP is withdrawn for use on humans because of reports of the negatives effects caused by its use. 3|
|1967||PCP is marketed under the name Sernylan as a tranquilizer and anesthetic for animals. 3|
|1967||PCP shows up on the street as a recreational drug under a variety of names including 'angel dust', 'hog', 'super-weed', and 'THC'. Because it is inexpensive and relatively easy to make it is frequently marketed and sold as other substances including Cocaine, LSD, and THC. 2|
|Apr 6, 1969||PCP was placed under DACA control in the United States, making it illegal to possess, sell, or manufacture except for personal use. 4|
|Nov 1969||DEA's forerunner, the Bureau of Narcotics and Dangerous Drugs, reports in their Microgram newsletter: "Phencyclidine HCI impregnated on plant material and promoted as 'Hog' was recently analyzed by our Washington Regional laboratory. The evidence was seized in Virginia, and a localpolice department states that the term 'Hog' has been used in the area for alleged 'THC', reportedly mixed with strychnine."|
|Early 1970s||PCP is placed in schedule III of the Controlled Substance Act.|
|1973 - 1975||Use of PCP spreads quickly in the U.S. 2|
|1978||PCP is moved from schedule III to schedule II of the Controlled Substance Act. 5|
|1979||7 percent of high school seniors report having used PCP in the last year. 6 [More Info]|
|1980 - 1995||The use of PCP among high school students steadily declines between 1979 and and the mid 1990s. 6 [More Info]|
|2010||Five percent of men arrested in the District of Columbia test positive for PCP. 7 [Details]|
- Rudgley R. The Encyclopaedia of Psychoactive Substances. Thomas Dunne Books, 1998.
- Carroll M. The Encyclopedia of Psychoactive Drugs: PCP. Chelsea House, 1985.
- Grinspoon L, Bakalar JB. Psychedelic Drugs Reconsidered. Lindesmith, 1997.
- Bureau of Narcotics and Dangerous Drugs. Microgram Jan 1969;2(1):2.
- DEA. DEA Web Site.
- Monitoring the Future Study.
- Arrestee Drug Abuse Monitoring Program II Annual Report 2010. p. xvi.