What Is PCP? Drug Class, Schedule & Drug Test Answers

Evidence-based answer reviewed against SAMHSA cutoffs and FDA assay documentation · Updated September 2026

Quick answer: PCP is a Dissociative anesthetic. Schedule I/II anomaly (veterinary use only). Here's how the drug is classified, whether it's a narcotic/controlled substance, and what that means for testing.

What is PCP?

Drug class: Dissociative anesthetic

Federal schedule: Schedule I/II anomaly (veterinary use only).

PCP anchors the original federal 5-panel at a tight 25 ng/mL cutoff. Chronic use extends urine detection unusually long due to accumulation in fatty tissue and enterohepatic recirculation.

Is PCP a narcotic?

It is classified as a narcotic under the DEA's federal schedule. What matters more for you: Schedule I/II anomaly (veterinary use only)..

Does it show up on drug tests?

Yes — it is on the standard federal 5-panel. See the full PCP drug test guide for detection windows and cutoffs.

False-positive caution

  • Dextromethorphan (dextromethorphan cough syrup), diphenhydramine (diphenhydramine), doxylamine (multi-symptom cold remedies), tramadol, venlafaxine (venlafaxine), imipramine, ketamine, and meperidine have documented PCP-screen false positives — GC–MS confirmation is definitive.

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Medical disclaimer: DrugPanels provides educational information about laboratory drug testing and does not offer medical advice, diagnosis, or treatment. Detection windows are population ranges — individual results vary with metabolism, dose, frequency and health status. Never stop prescribed medication to pass a test without talking to your prescriber. Affiliate disclosure: some links on this page are affiliate links; if you order through them we may earn a commission at no additional cost to you.

People also ask

Does Pcp Show up on a Drug Test?

Yes — PCP appears on standard drug panels. Full guide →

Do prescriptions count against me?

No — verified prescriptions report as negative through the Medical Review Officer. Declare medications at collection and answer the follow-up call.

Sources & further reading

  • SAMHSA — Mandatory Guidelines for Federal Workplace Drug Testing Programs (cutoffs, MRO process)
  • DOT — 49 CFR Part 40 procedures for transportation workplace testing
  • Brahm NC et al., Mayo Clinic Proceedings 2008;83(1):66–76 — false-positive cross-reactivity reference
  • FDA — drug-of-abuse test device labeling (detection window conventions)