Is Nitrous Oxide legal in Taiwan?

Legal status

Not controlled as a narcotic under Taiwan's Narcotics Hazard Prevention Act (毒品危害防制條例): absent from all four narcotics schedules and from the controlled drugs grades and items list, and controlled instead under the Toxic and Concerned Chemical Substances Control Act. Nitrous oxide is not a narcotic in Taiwan and is not a controlled drug. It is a 關注化學物質, a chemical substance of concern, register number L001-01, CAS 10024-97-2, first announced on 30 October 2020 and re announced on 12 January 2023. It was the first substance Taiwan ever placed in that category. The model: the four grades and their anchor substances are in the Act itself, article 2(2) reading 「毒品依其成癮性、濫用性及對社會危害性，分為四級，其品項如下」, and the full item lists are the Act's own four schedules, 附表一 to 附表四. The power to change them is delegated. Article 2(3) reads 「前項毒品之分級及品項，由法務部會同衛生福利部組成審議委員會，每三個月定期檢討，審議委員會並得將具有成癮性、濫用性、對社會危害性之虞之麻醉藥品與其製品、影響精神物質與其製品及與該等藥品、物質或製品具有類似化學結構之物質進行審議，並經審議通過後，報由行政院公告調整、增減之，並送請立法院查照」, a review committee of the justice and health ministries reviewing every three months, adjustment by Executive Yuan announcement, reported to the Legislative Yuan. The Act was last amended 4 May 2022. The list was last amended by the Executive Yuan announcement of 25 June 2026, in force 27 June 2026, which moved etomidate and eight related compounds from Category 2 up to Category 1.

Consequences if caught

No article of the Narcotics Hazard Prevention Act applies, because articles 4 to 11 operate only on substances graded in the Act's four schedules and this substance is in none of them. The controlled activities are manufacture, import, sale, use and storage, each needing approval, with monthly reporting and a container warning reading 「限工業用、禁止吸食」, for industrial use only, inhalation prohibited. Online and mail order sale is prohibited outright. Operating without approval, failing to report or failing to label draws NT$30,000 to NT$300,000 under article 61, and selling through an online platform draws NT$60,000 to NT$300,000 under article 60 with repeat penalties. Military use and rocket propellant use are carved out. Capital and life exposure. Neither reaches this substance, and not because the penalty is low but because no narcotics offence applies to it at all, at any quantity. Articles 4 to 11 of the Narcotics Hazard Prevention Act operate only on substances graded in the Act's four schedules, and the death and life penalties live in article 4(1) for Category 1, article 6(1) for forced administration of a Category 1 narcotic, article 4(2) for life on Category 2, and article 15(1) for a public official committing an article 4(2) or article 6(1) offence. None of those can be engaged by a substance with no schedule entry. The one qualification is article 9(3), 「犯前五條之罪而混合二種以上之毒品者，適用其中最高級別毒品之法定刑，並加重其刑至二分之一」: if this substance is held mixed with substances that are graded, the charge is built on those, takes the highest grade among them and adds up to one half, and this substance is swept into that charge rather than giving rise to one of its own.

If prescribed or medical

Medical nitrous oxide for anaesthesia and dental sedation is a legitimate declared use inside the approval regime. It is not dispensed to patients.

Documentation

Whipped cream chargers are the retail form and they are inside the regime. Carrying them for inhalation is the conduct the labelling requirement was written against.

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