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PROTOPAM CHLORIDE - (PWS 1G/VIAL) 1 G — DIN 02043475

PRALIDOXIME CHLORIDE : 1 G · WYETH CANADA · POWDER FOR SOLUTION · wholesale supply in Canada

Health Canada status: CANCELLED POST MARKET

What is PROTOPAM CHLORIDE - (PWS 1G/VIAL)?

PROTOPAM CHLORIDE - (PWS 1G/VIAL) 1 G contains PRALIDOXIME CHLORIDE : 1 G. It is listed in the Health Canada Drug Product Database under DIN 02043475, held by WYETH CANADA, supplied as POWDER FOR SOLUTION for INTRAMUSCULAR ; INTRAVENOUS ; SUBCUTANEOUS administration. Health Canada currently lists it as cancelled post market, status dated 23-May-2007. This Drug Identification Number is no longer authorized for sale in Canada, so Nexara does not supply it. The record is kept here because buyers still meet the number on old formularies, purchase orders and tender documents; Nexara can help identify an authorized alternative.

Is there a generic Pralidoxime 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.

2 holders have a Canadian DIN containing Pralidoxime, across 2 DINs, of which 0 are currently marketed. Marketed count is the number that matters: an approval that is not marketed cannot be bought.

Market authorization holderDINsMarketedBrand namesPosition
AYERST LABORATORIES10PROTOPAM CHLORIDE INJ 1GMNo marketed DIN
WYETH CANADA10PROTOPAM CHLORIDE - (PWS 1G/VIAL)No 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 label1 G
Dosage formPOWDER FOR SOLUTION
RouteINTRAMUSCULAR ; INTRAVENOUS ; SUBCUTANEOUS

Pack detail is kept as a regulatory record. This DIN is no longer authorized for sale in Canada, so Nexara does not quote this pack.

Substance and classification

Active substancePralidoxime
ATC codeV03AB04
AHFS class91:00.00
Biosimilar biologicNo

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)02043475
DIN (unpadded, as printed on some documents)2043475
Brand namePROTOPAM CHLORIDE - (PWS 1G/VIAL)
Generic / active ingredientPRALIDOXIME CHLORIDE : 1 G
Market authorization holderWYETH CANADA
Health Canada schedulePrescription
ATC codeV03AB04
ATC anatomical main groupV — Various
ATC therapeutic subgroupV03AB
Current statusCANCELLED POST MARKET
Status date23-May-2007
Original market date1996-10-25 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

0 of 2 Canadian DINs for this molecule are currently marketed. Marketed products are listed first.

ProductStrengthFormHolderHealth Canada statusDIN
PROTOPAM CHLORIDE INJ 1GM1 GPOWDER FOR SOLUTIONAYERST LABORATORIESCANCELLED POST MARKET00002267

2 · Same class — other molecules in ATC V03AB

MoleculeCanadian brandsDINsMarketedSourceable
NaloxoneINJECTABLE NALOXONE HYDROCHLORIDE · KLOXXADO · NALOXONE HCL INJECTION - 0.4MG/ML USP · NALOXONE HCL INJECTION - 1MG/ML USP · +11 more2612Yes
SugammadexBRIDION · PMS-SUGAMMADEX · SUGAMMADEX · SUGAMMADEX INJECTION · +1 more144Yes
ThiosulphateSEACALPHYX · SODIUM THIOSULFATE INJ 25% USP · SODIUM THIOSULFATE INJECTION USP43Yes
Methylthioninium ChlorideMETHYLENE BLEU LIQ 2% · METHYLENE BLUE INJ 1% · METHYLENE BLUE INJ 1% USP · METHYLENE BLUE INJ 10MG/ML USP · +3 more112Yes
FlumazenilANEXATE INJ 0.1MG/ML · FLUMAZENIL INJECTION · FLUMAZENIL INJECTION SDZ · FLUMAZENIL INJECTION, USP · +1 more62Yes
ProtaminePROTAMINE SULFATE INJ 10MG/ML USP · PROTAMINE SULFATE INJECTION USP · PROTAMINE SULFATE INJECTION, USP42Yes
FomepizoleANTIZOL · FOMEPIZOLE FOR INJECTION22Yes
HydroxocobalaminCYANOKIT21Yes
Digitalis AntitoxinDIGIBIND · DIGIFAB21Yes
IdarucizimabPRAXBIND11Yes

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 V03A

ATC subgroupMoleculesDINsMarketed
V03ACDeferasirox · Deferiprone · Deferoxamine5744
V03ANCarbon Dioxide · Combination · Helium · Medical Air · Medical Gases · +2 more11243
V03AECalcium Acetate · Drugs For Treatment Of Hyperkalemia And Hyperphosphatemia · Lanthanum Carbonate · Patiromer Calcium · Polystyrene Sulphonate · +3 more4019
V03AFAmifostine · Calcium Folinate · Dexrazoxane · Mesna · Palifermin · +1 more3416
V03AHDiazoxide21
V03AXCobicistat · Difelikefalin · Other Therapeutic Products81
V03AZEthanol10

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.

What else is PROTOPAM CHLORIDE - (PWS 1G/VIAL) called?

The same molecule, Pralidoxime, is registered under other names elsewhere. Buyers and prescribers searching from outside Canada — or working from a foreign prescription or tender document — often know it by one of these:

NameScriptRegistered in
ContrathionLatinIceland

Names are taken from national medicine registers and published price lists. A product registered abroad is not authorized for sale in Canada unless it holds its own DIN; import is possible only through the routes Health Canada permits.

Can this still be bought in Canada?

No. This Drug Identification Number is cancelled post market in Health Canada's Drug Product Database, so the product is no longer authorized for sale in Canada and Nexara does not supply it. This page is kept as a regulatory record.

If you are looking for a current equivalent, the alternatives above list every product sharing this therapeutic class, with the marketed ones first. Ask us to source an alternative

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 02043475. Last reviewed 2026-09-10. Nexara Health is a licensed wholesaler and supplies licensed entities only; consumer orders are routed to a partner pharmacy.