A quick answer: PCP is generally detectable in urine for 5–7 days (chronic use up to 30 days). Blood, saliva, and hair have different windows — and several personal factors change the timeline. Here is what the science says, and how to confirm a result definitively. (Also searched as: phencyclidine, angel dust.)
PCP detection windows
Typical detection windows by test type:
| Urine | 5–7 days (chronic use up to 30 days) |
|---|---|
| Blood | up to 24 hours |
| Saliva | up to 3 days |
| Hair | up to 90 days |
Detection windows are general estimates and vary by dose, frequency of use, individual metabolism, body composition, hydration, and the test’s cutoff level. They are not guarantees or medical advice. Hair testing generally reflects roughly the prior 90 days for all substances.
What affects how long PCP stays in your system
PCP is fat-soluble and accumulates with chronic use, extending its urine window well beyond a week. In general, higher doses, more frequent use, slower metabolism, and higher cutoff sensitivity all lengthen how long a substance is detectable. There is no reliable way to "flush" a substance out faster than your body clears it.
Test for PCP
To confirm PCP definitively, use a lab-confirmed test. Order a private at-home drug test (a 10 panel panel covers PCP), or set up employer testing. Every LabX positive is confirmed by LC-MS/MS.
Order an at-home test → For employers