Not common in workplace primarily because of the severe disorientation that occurs.

There are four phases to PCP abuse:

• Acute toxicity causing combativeness, catatonia, convulsions, and coma. Distortions of size, shape, and distorted perception are common.
• Toxic psychosis with visual and auditory delusions, paranoia and agitation.
• Drug induced schizophrenia.
• Induced depression, which may create suicidal tendencies and mental dysfunction.

The potential for accidents and overdose emergencies is high due to the extreme mental effects combined with the anesthetic effect on the body.

PCP, when combined with other depressants, including alcohol, increases the possibility of an overdose.

If misdiagnosed as LSD induced, and treating with thorazine, can be fatal. Irreversible memory loss, personality changes, and thought disorders may result.

Often used as a large animal tranquilizer. Abused primarily for its mood altering effects. Low Phencyclidine (PCP) doses produce sedation and euphoric mood changes. Mood can rapidly change from sedation to excitation and agitation. Larger Phencyclidine (PCP) doses may produce a coma-like condition with muscle rigidity and a blank stare. Sudden noises or physical shocks may cause a "freak out" in which the person has abnormal strength, violent behavior, and an inability to speak or comprehend.