Anesthetics dissociative hallucinogens used

PCP is a controlled substance called phencyclidine that causes hallucinations. Usage can result in assaults, murders, and suicides. PCP was developed in the late 1950s as a dissociative anesthetic that leaves a patient awake but detached from surroundings and unresponsive to pain. Once the dmg s hallucinogenic effect was discovered, PCP was withdrawn from use in humans, but continued to be used in veterinary medicine. PCP picked up the street name hog because of its use with animals. 

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