Drug Recognition Expert Practice Exam

Phencyclidine, commonly known as PCP, is best described as a dissociative anesthetic due to its unique mechanism of action that induces a state of dissociation in the user. This means that it can lead to a sense of detachment from one's body and the surrounding environment, which is a key characteristic of dissociative anesthetics. Dissociative anesthetics, like PCP, primarily work on the NMDA (N-methyl-D-aspartate) receptor in the brain, affecting the perception of pain, sensory input, and consciousness.

The dissociative effects are what distinguish PCP from other types of anesthetics. When administered, it can create feelings of euphoria, hallucinations, and altered sensory perceptions which can lead to significant changes in the user's cognitive functions and experiences. This dissociative state is distinct and often not present with other classifications of anesthetics.

Understanding the classification of PCP as a dissociative anesthetic is crucial for recognizing its effects, implications for safety, and the necessary precautions when dealing with individuals under its influence.