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OHTA'S ISAN STOMACH POWDER 497 MG / 1.3 G — DIN 02005085

CALCIUM CARBONATE : 497 MG / 1.3 G SODIUM BICARBONATE : 600 MG / 1.3 G · MAIZUN-CALBER (CANADA) LTD. · POWDER · wholesale supply in Canada

Health Canada status: CANCELLED POST MARKET

What is OHTA'S ISAN STOMACH POWDER?

OHTA'S ISAN STOMACH POWDER 497 MG / 1.3 G contains CALCIUM CARBONATE : 497 MG / 1.3 G SODIUM BICARBONATE : 600 MG / 1.3 G. It is listed in the Health Canada Drug Product Database under DIN 02005085, held by MAIZUN-CALBER (CANADA) LTD., supplied as POWDER for ORAL administration. Health Canada currently lists it as cancelled post market, status dated 28-Aug-1999. 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 Antacids With Sodium Bicarbonate 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.

7 holders have a Canadian DIN containing Antacids With Sodium Bicarbonate, across 9 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
BRIOSCHI, INC.20BRIOSCHI EFFERVESCENT ANTACID - 1.8GM/6GM, BRIOSCHI EFFERVESCENT ANTACID PWR 280.3MG/GMNo marketed DIN
D.C. LABS LIMITED20SODIUM BICARBONATE TAB 300MG, SODIUM BICARBONATE TAB 600MGNo marketed DIN
MAIZUN-CALBER (CANADA) LTD.10OHTA'S ISAN STOMACH POWDERNo marketed DIN
REGAL PHARMS, DIVISION OF BRADCAN CORPORATION10BAKING SODA USPNo marketed DIN
ROTER PHARMACEUTISCHE FABRIEK10ROTER TABLETSNo marketed DIN
SABEX INC10NORMO GASTRYLNo marketed DIN
TOWER LABORATORIES LTD10BROMO SELTZERNo 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 label497 MG / 1.3 G
Dosage formPOWDER
RouteORAL

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 substanceAntacids With Sodium Bicarbonate
ATC codeA02AH
AHFS class56:04.00
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)02005085
DIN (unpadded, as printed on some documents)2005085
Brand nameOHTA'S ISAN STOMACH POWDER
Generic / active ingredientCALCIUM CARBONATE : 497 MG / 1.3 G SODIUM BICARBONATE : 600 MG / 1.3 G
Market authorization holderMAIZUN-CALBER (CANADA) LTD.
Health Canada scheduleNON-PRESCRIPTION DRUGS
ATC codeA02AH
ATC anatomical main groupA — Alimentary tract and metabolism
ATC therapeutic subgroupA02AH
Current statusCANCELLED POST MARKET
Status date28-Aug-1999
Original market date1997-06-20 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 9 Canadian DINs for this molecule are currently marketed. Marketed products are listed first.

ProductStrengthFormHolderHealth Canada statusDIN
BAKING SODA USP100 %POWDERREGAL PHARMS, DIVISION OF BRADCAN CORPORATIONCANCELLED POST MARKET00641634
BRIOSCHI EFFERVESCENT ANTACID - 1.8GM/6GM1.8 G / 6 GPOWDER (EFFERVESCENT)BRIOSCHI, INC.CANCELLED POST MARKET02230226
BRIOSCHI EFFERVESCENT ANTACID PWR 280.3MG/GM269 MGPOWDER (EFFERVESCENT)BRIOSCHI, INC.CANCELLED POST MARKET00677450
BROMO SELTZER2.667 G / 7.3 GGRANULESTOWER LABORATORIES LTDCANCELLED POST MARKET02241892
NORMO GASTRYL195 MGTABLET (EFFERVESCENT)SABEX INCCANCELLED POST MARKET00570826
ROTER TABLETS25 MGTABLETROTER PHARMACEUTISCHE FABRIEKCANCELLED POST MARKET00173797
SODIUM BICARBONATE TAB 300MG300 MGTABLETD.C. LABS LIMITEDCANCELLED POST MARKET00093068
SODIUM BICARBONATE TAB 600MG600 MGTABLETD.C. LABS LIMITEDCANCELLED POST MARKET00221619

2 · Same class — other molecules in ATC A02AH

MoleculeCanadian brandsDINsMarketedSourceable
Antacids With Sodium BicarbonateBAKING SODA USP · BRIOSCHI EFFERVESCENT ANTACID - 1.8GM/6GM · BRIOSCHI EFFERVESCENT ANTACID PWR 280.3MG/GM · BROMO SELTZER · +5 more90Not 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 A02A

ATC subgroupMoleculesDINsMarketed
A02AFMagaldrate And Antiflatulents · Ordinary Salt Combinations And Antiflatulents594
A02AXAntacids, Other Combinations142
A02AAMagnesium Carbonate · Magnesium Hydroxide140
A02ABAluminium Hydroxide10
A02ACCalcium Carbonate160
A02ADMagaldrate · Ordinary Salt Combinations470

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.

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 02005085. Last reviewed 2026-09-10. Nexara Health is a licensed wholesaler and supplies licensed entities only; consumer orders are routed to a partner pharmacy.