Nitrous Oxide (Laughing Gas, Whippits) and Ketamine Therapy | Tovani Health
N2O (Nitrous Oxide) (also: Laughing Gas, Whippits) — Inhaled anesthetic / NMDA antagonist (dental, recreational)
Verdict at Tovani Health
Compatible; the NMDA mechanism overlaps with ketamine, and chronic recreational use can deplete B12.
Nitrous oxide and ketamine are compatible. Occasional use in a dental or medical setting is fine, including dental nitrous within 24 hours of a session. Two specifics for recreational use (whippits): nitrous shares ketamine's NMDA-antagonist mechanism, so the experiential overlap is more direct than for psychedelics; and chronic recreational use inactivates vitamin B12, which can cause peripheral neuropathy and macrocytic anemia independent of any ketamine interaction.
If you take N2O regularly and are considering at-home ketamine therapy, the combination is safe with monitoring or dose adjustment. This page covers the brief pharmacologic context and what we do at intake.
How N2O interacts with ketamine
Nitrous oxide antagonizes NMDA glutamate receptors (same family as ketamine) and modulates opioid receptors. Used at low concentrations for dental anxiety and procedural analgesia. Chronic recreational inhalation inactivates B12, blocking methionine synthase.
What we do at intake
Disclose dental nitrous use within the past week and any recreational whippit use. For chronic recreational users, we screen B12 status and may delay KAP until B12 is corrected.
Bottom line
Nitrous oxide and ketamine are compatible. Occasional use in a dental or medical setting is fine, including dental nitrous within 24 hours of a session. Two specifics for recreational use (whippits): nitrous shares ketamine's NMDA-antagonist mechanism, so the experiential overlap is more direct than for psychedelics; and chronic recreational use inactivates vitamin B12, which can cause peripheral neuropathy and macrocytic anemia independent of any ketamine interaction.
Ready to find out if at-home ketamine fits your situation?
We’ll note that you’re on N2O (Nitrous Oxide) 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.
Clinically reviewed
Reviewed by Benjamin Soffer, DO on May 16, 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.