PCP was developed in the 1950s as an intravenous anesthetic, but its use for humans was discontinued because it caused patients to become agitated, delusional, and irrational. Today individuals use PCP for recreational use because of the mind-altering, hallucinogenic effects it produces.

Common Names: Peace pill, angel dust, crystal, hog, horse tranquilizer , flakes, embalming fluid, and rocket fuel

Appearance: In its original state, PCP is a white crystalline powder. PCP is available in tablet, liquid, and powder forms and is either ingested orally or smoked by applying the liquid form to tobacco or marijuana cigarettes or by lacing these and other cigarettes, sometimes containing herbs such as mint or parsley, with PCP powder.

Effects: PCP is known for inducing violent behavior and for inducing negative physical reactions such as seizures, and coma. There is no way to predict who will have a bad reaction to the drug. PCP acts as a hallucinogen, stimulant, depressant, and anesthetic---all at the same time. A moderate amount of PCP often causes the user to feel detached, distant and estranged from his surroundings. Numbness, slurred speech and loss of coordination may be accompanied by a sense of strength and invulnerability. A blank stare, rapid and involuntary eye movements, and an exaggerated gait are among the more observable effects. Auditory hallucinations, image distortion, severe mood disorders, and amnesia may also occur.