PCP With Ketamine: Proceed With Care
Angel Dust (Phencyclidine) (also: PCP) — NMDA receptor antagonist dissociative (DEA Schedule II; recreational use illegal)
Verdict at Tovani Health
Same mechanism as ketamine; we space sessions from any recent use and evaluate individually.
PCP is a DEA Schedule II controlled substance in the United States; recreational possession is illegal. PCP shares ketamine's NMDA-antagonist mechanism but with much longer duration of action (hours to a day) and a more variable, often agitating profile. Recent PCP use disqualifies a ketamine session because we cannot predict the combined or carryover effects. Distant past use does not permanently disqualify you from KAP. We evaluate individually and require a substantial separation window.
If you take Angel Dust regularly and are considering at-home ketamine therapy, eligibility depends on your specific situation — we evaluate case by case. This page covers the brief pharmacologic context and what we do at intake.
How Angel Dust interacts with ketamine
PCP non-competitively antagonizes NMDA glutamate receptors, the same primary target as ketamine, but with longer occupancy and more pronounced psychotomimetic effects (paranoia, aggression, prolonged dissociation). The two drugs do not have a documented pharmacokinetic interaction, but the cumulative dissociative effect of recent PCP plus a ketamine session is unstudied and clinically unsafe to attempt at home.
What we do at intake
Disclose any recent PCP use honestly. We require at least 4 weeks of abstinence before starting KAP. Distant historical use (months or years prior) does not disqualify you. We are not an enforcement service.
Bottom line
PCP is a DEA Schedule II controlled substance in the United States; recreational possession is illegal. PCP shares ketamine's NMDA-antagonist mechanism but with much longer duration of action (hours to a day) and a more variable, often agitating profile. Recent PCP use disqualifies a ketamine session because we cannot predict the combined or carryover effects. Distant past use does not permanently disqualify you from KAP. We evaluate individually and require a substantial separation window.
Ready to find out if at-home ketamine fits your situation?
We’ll note that you’re on Angel Dust (Phencyclidine) at intake. The eligibility check takes 5 minutes and gives you an honest answer about whether at-home ketamine fits your specific situation.
FL and NJ residents only. Benjamin Soffer, DO — Tovani Health.
Sources
The verdict and clinical guidance on this page are based on the following peer-reviewed literature and FDA prescribing information.
- Ketamine: A Review of Clinical Pharmacokinetics and Pharmacodynamics in Anesthetic and Pain Therapy. Peltoniemi MA, Hagelberg NM, Olkkola KT, Saari TI. Clinical Pharmacokinetics. 2016. PMID: 27028535
Reviews ketamine's NMDA pharmacology and its similarity to PCP at the receptor level.
Clinically reviewed
Reviewed by Benjamin Soffer, DO on May 19, 2026. Dr. Soffer is a board-certified physician (American Board of Internal Medicine) licensed in Florida and New Jersey, prescribing at-home ketamine therapy through Tovani Health.
This page is general information about how this medication interacts with at-home ketamine therapy at Tovani Health. It is not a substitute for medical advice from your prescribing physician about your specific situation. Always discuss medication changes with the doctor who prescribed them.