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ALNOX GAS 50 % — DIN 02071010

OXYGEN : 50 % NITROUS OXIDE : 50 % · AIR LIQUIDE CANADA INC. · GAS · wholesale supply in Canada

Health Canada status: MARKETED

What is ALNOX GAS?

ALNOX GAS 50 % contains OXYGEN : 50 % NITROUS OXIDE : 50 %. It is listed in the Health Canada Drug Product Database under DIN 02071010, held by AIR LIQUIDE CANADA INC., supplied as GAS for INHALATION administration. Health Canada currently lists it as marketed, status dated 31-Dec-1995. Nexara Health is a licensed Canadian wholesale distributor (DEL 3-002896-A) and can source this product for hospitals, pharmacies and clinics. Availability and lead time are confirmed per order.

Is there a generic Nitrous Oxide,Combinations in Canada, and who makes it?

Every market authorization holder with a Canadian DIN for this molecule, and how many of their listings Health Canada currently shows as marketed.

4 holders have a Canadian DIN containing Nitrous Oxide,Combinations, across 4 DINs, of which 3 are currently marketed. Marketed count is the number that matters: an approval that is not marketed cannot be bought.

Market authorization holderDINsMarketedBrand namesPosition
AIR LIQUIDE CANADA INC.11ALNOX GASSourceable in Canada
MESSER CANADA INC.11MEOPASourceable in Canada
PRAXAIR CANADA INC11LIQUI-MED ANALGESIC GASSourceable in Canada
MATHESON GAS PRODUCTS CANADA INC.10NITROUS OXIDE IN OXYGENNo marketed DIN

Health Canada’s Drug Product Database does not flag which listing is the originator and which are subsequent-entry products, so Nexara does not label them here. Interchangeability is determined provincially, not federally — confirm for your province before a formulary switch. Nexara can confirm which of these is actually obtainable, and on what lead time, per order.

How is it supplied and stored?

Pack configuration, storage class and the handling constraints that drive cold-chain planning. One DIN can cover more than one pack size, and the pack — not the DIN — is what gets priced, shipped and invoiced.

Strength on the label50 %
Dosage formGAS
RouteINHALATION

Before an order line is unambiguous Nexara needs the strength, the pack size and the presentation.

Substance and classification

Active substanceNitrous Oxide,Combinations
ATC codeN01AX63
AHFS class28:04.16
Biosimilar biologicNo

Confirm the pack and get a price

Health Canada record and identifiers

The regulatory facts straight from the Drug Product Database, plus every identifier form Nexara accepts on a purchase order. A DIN written without its leading zeros is the commonest reason an order line fails to match.

DIN (8-digit, as used in ordering)02071010
DIN (unpadded, as printed on some documents)2071010
Brand nameALNOX GAS
Generic / active ingredientOXYGEN : 50 % NITROUS OXIDE : 50 %
Market authorization holderAIR LIQUIDE CANADA INC.
Health Canada scheduleEthical
ATC codeN01AX63
ATC anatomical main groupN — Nervous system
ATC therapeutic subgroupN01AX
Current statusMARKETED
Status date31-Dec-1995
Original market date1995-12-31 00:00:00
Status sourceLive Health Canada DPD sync

Verify on the primary sources

Health Canada DPD record

What can be used instead?

Alternatives on every axis a buyer actually considers — the same molecule in another presentation, the same class, an adjacent class, or a fixed-dose combination. Every row is led by the marketed DIN count, because that is what can be bought this week.

1 · Same molecule, other Canadian presentations

3 of 4 Canadian DINs for this molecule are currently marketed. Marketed products are listed first.

ProductStrengthFormHolderHealth Canada statusDIN
LIQUI-MED ANALGESIC GAS50 %GASPRAXAIR CANADA INCMARKETED00693596
MEOPA50 %GASMESSER CANADA INC.MARKETED02154757
NITROUS OXIDE IN OXYGEN50 %GASMATHESON GAS PRODUCTS CANADA INC.CANCELLED POST MARKET00460923

2 · Same class — other molecules in ATC N01AX

MoleculeCanadian brandsDINsMarketedSourceable
KetamineKETALAR · KETAMINE HYDROCHLORIDE INJECTION SDZ · KETAMINE HYDROCHLORIDE INJECTION USP · KETAMINE HYDROCHLORIDE INJECTION, USP · +1 more137Yes
PropofolDIPRIVAN 1% · PROPOFOL · PROPOFOL INJECTION · PROPOFOL-II INJECTION · +1 more114Yes
Nitrous OxideNITROUS OXIDE · NITROUS OXIDE 100% · NITROUS OXIDE 99% · NITROUS OXIDE U.S.P. · +1 more63Yes
Nitrous Oxide,CombinationsALNOX GAS · LIQUI-MED ANALGESIC GAS · MEOPA · NITROUS OXIDE IN OXYGEN43Yes
EtomidateETOMIDATE INJECTION USP · ETOMIDATE INJECTION, USP · TOMVI32Yes
DroperidolINAPSINE INJ 2.5MG/ML10Not in Canada

A molecule with zero marketed DINs cannot be sourced domestically, however many approvals it holds — if one of these sits on a formulary or in an older protocol, that is the line to check.

3 · Adjacent classes in ATC N01A

ATC subgroupMoleculesDINsMarketed
N01AHAlfentanil · Anileridine · Fentanyl · Fentanyl, Combinations · Remifentanil · +1 more3312
N01ABDesflurane · Enflurane · Halothane · Isoflurane · Sevoflurane196
N01AFMethohexital · Thiopental60

Not clinical advice. These tables describe what can be supplied in Canada, not what should be prescribed. Substitution within or across classes is a prescriber and pharmacist decision, and interchangeability is determined provincially.

How can I get it?

Nexara Health supplies this product to licensed Canadian buyers — pharmacies, hospitals, clinics, licensed distributors, and clinical trial sponsors or their CROs. We confirm stock, pack size, expiry and pricing at the time of quotation. If the product is on backorder or in shortage, we identify equivalent alternatives and import options where permitted.

Request a quote for ALNOX GAS

Ordering questions

Who can buy this from Nexara?

Licensed entities only. Nexara holds Health Canada establishment licence DEL 3-002896-A and ships only to a licensed address. Patients and unlicensed buyers are routed to a partner pharmacy.

Is there a minimum order?

Yes, set per product line and per pack multiple rather than on the order total, so you are never asked to buy a part-pack. The minimum for this line is confirmed with your quote.

What is the lead time?

Confirmed per order at quotation, and it depends on current stock position and whether the product is in shortage.

Why is there no price on this page?

Nexara quotes a delivered Canadian price per order, against a verified licence. Foreign list prices are published on incompatible bases and are not a guide to what any buyer can obtain here, so this page shows which markets list the molecule and on what basis, and nothing more.

Can Nexara supply this for a clinical trial?

Yes — comparator and background-therapy supply, including sourcing from other markets where a Canadian pack will not satisfy the protocol. Clinical trial supply.

Sources and disclaimer

Product data sourced from the Health Canada Drug Product Database. Health Canada status reconciled against the live DPD sync. Last reviewed 10 Sep 2026.

Nothing on this page is medical advice. Nexara Health is a licensed wholesale distributor and supplies licensed entities only; consumer orders are routed to a partner pharmacy. Alternatives tables describe supply, not clinical equivalence.

Health Canada Drug Product Database (DPD), DIN 02071010. Last reviewed 2026-09-10. Nexara Health is a licensed wholesaler and supplies licensed entities only; consumer orders are routed to a partner pharmacy.