The short version
Only one company currently supplies this market — there is no backup if it stumbles.
The numbers behind every sentence are on this page below — and the Watch button emails you when any of them move.
Stomachin Antacid
magnesium carbonate and sodium bicarbonate · MAGNESIUM CARBONATE 58 mg/g; SODIUM BICARBONATE 809 mg/g · Powder · Oral · Chang Kuo Chou Pharmaceutical Co., Ltd.
NDC 43337-9329-07 · 95 g in 1 CAN · OTC MONOGRAPH DRUG · View full market →
Medicare Part D
Medicare Part D does not cover over-the-counter drugs — by law it pays only for products requiring a prescription.
How Part D pricing works →NADAC price per unit
No NADAC pricing on file for this NDC — NADAC covers drugs dispensed by retail community pharmacies.
Supply fragility
Not scored — fragility is computed for NADAC-priced NDCs.
Is this a "specialty" drug?
There's no legal definition — it meets 1 of 6 public criteria. Why that matters →
- Part D specialty tier
- Costs ≥ $950/fill
- Biologic (BLA)
- Injectable / infused
- Orphan-drug exclusivity
- REMS program · Xywav and Xyrem
Regulatory
- Application
- M001
- TE code
- —
- Approval date
- —
- Patents / exclusivity
- None on file
Shortage history
No FDA shortage reports for this drug or its presentations.
Recalls (this NDC)
No enforcement reports list this package NDC.
Manufacturers of magnesium carbonate and sodium bicarbonate (Powder)
| Labeler | Strength | First seen | Last seen |
|---|---|---|---|
| Chang Kuo Chou Pharmaceutical Co., Ltd. | MAGNESIUM CARBONATE 58 mg/g; SODIUM BICARBONATE 809 mg/g | Jul 15, 2026 | Sep 2, 2026 |
Roster from daily NDC Directory diffs — first/last seen dates start July 2026.
Cite this page
DrugDashboards, "Stomachin Antacid — NDC 43337-9329-07," retrieved September 3, 2026, https://drugdashboards.com/drug/43337932907.
Free to cite with attribution — see how the data is put together.