Not yet medically reviewed, information on this site is in preparation and has not been verified by a medical reviewer.
Legality · Nitrous Oxide

Is Nitrous Oxide legal in New Zealand?

Confirmed against a primary sourceVerified July 14, 2026
Legal status
Nitrous oxide is a medicine under the Medicines Act 1981 when intended for therapeutic use, but a psychoactive substance under the Psychoactive Substances Act 2013 when supplied for a recreational effect; no recreational product is approved, so selling or possessing-for-sale nitrous oxide for a psychoactive purpose is illegal, and from 5 June 2026 importing it requires a permit from the Director-General of Health.
Consequences if caught
Selling, offering or possessing-for-sale for recreational use carries up to 2 years' imprisonment (individual) or fines up to $500,000 (company) under the Psychoactive Substances Act. No death penalty (non-DP).
If prescribed or medical
Therapeutic nitrous oxide is a lawful medical/anaesthetic gas; genuine culinary use of small food cartridges is permitted.
Documentation
Large 'whipped-cream' canisters over 10 g of nitrous oxide are treated as psychoactive substances; importing nitrous oxide without a permit is unlawful from 5 June 2026.
Primary source

Court records

We have not yet assessed whether court records are publicly available for this jurisdiction.

Nitrous Oxide in related jurisdictions

Other substances confirmed in New Zealand