North Carolina Licensed Clinical Addiction Specialist (LCAS) Practice Test

The correct answer is PCP. Phencyclidine, commonly known as PCP, exhibits both analgesic (pain-relieving) and hallucinogenic properties. Initially developed as an anesthetic, it is known for its ability to provide pain relief while also inducing altered sensory perceptions, including visual and auditory hallucinations. This dual nature makes it particularly unique among psychoactive substances.

Marijuana, while it can provide analgesic effects and might cause mild hallucinogenic experiences in some users, is primarily classified as a cannabinoid. LSD is primarily a hallucinogen without analgesic properties, and alcohol can have varying effects on pain perception but does not typically induce hallucinations in the same structured way as PCP. The distinctive combination of effects from PCP places it in a category of its own, aligning with the question's parameters.