Substance guides
How long does PCP stay in your system?
Published July 7, 2025 · 6 min read · Updated April 2026
Reviewed for accuracy by licensed clinical professionals.
PCP is highly lipophilic (fat-soluble), meaning it accumulates in fatty tissue and releases slowly, creating one of the longest detection windows of any drug.
Detection
Urine: 7-14 days for occasional use, up to 30+ days for chronic heavy use. Detected on standard drug panels (most 5-panel and all 10-panel tests include PCP). Blood: 1-3 days. Hair: up to 90 days.
Why so long
PCP accumulates in fat tissue with repeated use. The body releases stored PCP slowly over weeks, maintaining detectable levels long after last use.
Clinical significance
PCP-induced psychosis can persist for weeks after last use. Emergency room presentations with PCP intoxication require extended monitoring.
Frequently asked questions
How long does PCP stay in urine?
7-14 days occasional use, 30+ days for chronic use.
Does PCP show on a standard drug test?
Yes. PCP is included on most standard drug panels.
Why does PCP last so long?
PCP is highly fat-soluble, accumulating in tissue and releasing slowly over weeks.
Disclaimer: Informational only. Not medical advice. SAMHSA: 1-800-662-4357.