Is Nitrous Oxide legal in Philippines?

Also known as: laughing gas, whippets, nangs

Legal status

Not a dangerous drug on the text read: nitrous oxide is not listed in the Dangerous Drugs Board's Updated Lists of Scheduled Controlled Substances as at 06 July 2025, and no Board Regulation adding it appears on the Board's regulations register read on 2 October 2026. This is stated as at the Board's list of 06 July 2025 and the Board's regulations register read at https://ddb.gov.ph/board-regulations/ on 2 October 2026, whose newest entry is Board Regulation No. 5, Series of 2026 and which lists no Board Regulation No. 1, Series of 2026, and it does not rule out a later amendment.

Consequences if caught

No RA 9165 penalty attaches while it is unlisted. Searched in all 24 pages of the list: "nitrous" 0 hits; "dinitrogen" 0 hits; "N2O" 0 hits. A joint statement of the Dangerous Drugs Board and PDEA dated 19 May 2023 says it "is not classified or listed as a controlled or illegal substance under the Republic Act No. 9165" and that the FDA "classified Nitrous Oxide (N2O) as a prescribed medication". Section 93 lets the Board add a drug after notice and hearing, and under section 93(c) no criminal liability arises for an added drug until fifteen days after the last publication of the notice of that hearing. It is not free of penalty. Presidential Decree No. 1619 names "nitrous oxide" among the compounds that make a substance a volatile substance. Section 2 of Presidential Decree No. 1619 of 23 July 1979 punishes "The use or possession of volatile substances for the purpose of inhalation to induce or produce intoxication" with imprisonment of six months and one day to four years and a fine of PHP 600 to PHP 4,000, and section 3 punishes selling, giving away, distributing or transporting such a substance for that purpose with four years and one day to eight years and a fine of PHP 4,000 to PHP 8,000. The Dangerous Drugs Board and PDEA statement of 19 May 2023 names this Decree as one PDEA enforces.

If prescribed or medical

The joint statement of 19 May 2023 records that the FDA classified it as a prescribed medication; FDA rules themselves were not read for this cell.

Documentation

No dangerous drug document is needed under RA 9165, but inhaling it to get high is an offence under Presidential Decree No. 1619, so there is no lawful recreational use.

Drug laws and enforcement change and vary within a country. This is not legal advice. Always confirm with Philippines’s embassy or official drug authority before traveling; penalties can be severe, including imprisonment.