Phencyclidine, better known by its abbreviation PCP or the more colloquial Angel Dust is a hallucinogenic, dissociative recreational drug. Developed in the 1950s for use as an anesthetic, its use was discontinued when its side effects were discovered and it became a completely restricted drug in the United States in 1965. It can be ingested, injected, smoked or inhaled.
When a patient presents with phencyclidine intoxication, there is no antidote, so supportive care is provided, including benzodiazepines to treat any seizures.