PCP is classified as what type of drug, and what is its legitimate use?

• A. Hallucinogen; animal anesthetic
• B. Opioid; pain relief
• C. Stimulant; cognitive enhancement
• D. Depressant; sleep aid

Answer: (A)

PCP, or phencyclidine, is best described as a hallucinogen with dissociative effects. It was developed as an anesthetic, but in humans it caused severe adverse reactions and is no longer used for anesthesia. In veterinary medicine, PCP has legitimate use as an animal anesthetic, due to its analgesic and dissociative properties. That combination—hallucinogenic effects and a legitimate animal anesthesia use—explains why the correct description is a hallucinogen with an animal anesthetic use. The other options don’t fit because PCP is not an opioid (it doesn’t provide classic opioid analgesia), not a stimulant or for cognitive enhancement, and not a depressant used as a sleep aid.