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 Thailand?

Confirmed against a primary sourceVerified July 14, 2026
Legal status
Nitrous oxide is not scheduled as a narcotic under Thailand's Narcotics Code; as an anaesthetic medical gas it is a 'modern drug' whose manufacture, sale and import require a licence under the Drug Act B.E. 2510 (1967), so unlicensed sale for recreational inhalation is an offence while licensed medical use is lawful.
Consequences if caught
Unlicensed sale or supply is a Drug Act offence (imprisonment and fine); because nitrous oxide is not a scheduled narcotic it is NOT death-eligible.
If prescribed or medical
Nitrous oxide is a lawful medical/anaesthetic gas and food additive (E942); licensed medical and food-industry supply is permitted.
Documentation
Medical nitrous oxide is licensed; open recreational sale in tourist areas is unlicensed and unlawful under the Drug Act, though enforcement is uneven.
Primary source