The short version
21 companies supply this market — deep enough that no single failure threatens the supply.
The numbers behind every sentence are on this page below — and the Watch button emails you when any of them move.
famotidine, calcium carbonate and magnesium hydroxide · FAMOTIDINE 10 mg/1; CALCIUM CARBONATE 800 mg/1; MAGNESIUM HYDROXIDE 165 mg/1 · Tablet, Chewable · Oral · Target Corporation
NDC 82442-0321-71 · 50 TABLET, CHEWABLE in 1 BOTTLE · ANDA · View full market →
21 companies supply this market — deep enough that no single failure threatens the supply.
The numbers behind every sentence are on this page below — and the Watch button emails you when any of them move.
No Medicare Part D plan in CMS's quarterly files lists this product. That usually means it is discontinued, a repackager's listing, or a product no plan has added to its formulary.
How Part D pricing works →No NADAC pricing on file for this NDC — NADAC covers drugs dispensed by retail community pharmacies.
Not scored — fragility is computed for NADAC-priced NDCs.
sole-source market
For scale: the typical drug’s chance is about 0.1% — this one is in ordinary territory.
Backtested statistical model over the whole market, not this package alone. Model details →
No FDA shortage reports for this drug or its presentations.
No enforcement reports list this package NDC.
| Labeler | Strength | First seen | Last seen |
|---|---|---|---|
| Safeway | FAMOTIDINE 10 mg/1; CALCIUM CARBONATE 800 mg/1; MAGNESIUM HYDROXIDE 165 mg/1 | Aug 26, 2026 | Sep 3, 2026 |
| American Sales Company | FAMOTIDINE 10 mg/1; MAGNESIUM HYDROXIDE 165 mg/1; CALCIUM CARBONATE 800 mg/1 | Aug 26, 2026 | Sep 2, 2026 |
| Amerisource Bergen | FAMOTIDINE 10 mg/1; CALCIUM CARBONATE 800 mg/1; MAGNESIUM HYDROXIDE 165 mg/1 | Aug 26, 2026 | Sep 2, 2026 |
| Cardinal Health 110, LLC. dba Leader | FAMOTIDINE 10 mg/1; CALCIUM CARBONATE 800 mg/1; MAGNESIUM HYDROXIDE 165 mg/1 | Aug 26, 2026 | Sep 2, 2026 |
| CVS Pharmacy | FAMOTIDINE 10 mg/1; MAGNESIUM HYDROXIDE 165 mg/1; CALCIUM CARBONATE 800 mg/1 | Aug 26, 2026 | Sep 2, 2026 |
| Cvs Woonsocket Prescription Center, Incorporated | FAMOTIDINE 10 mg/1; CALCIUM CARBONATE 800 mg/1; MAGNESIUM HYDROXIDE 165 mg/1 | Aug 26, 2026 | Sep 2, 2026 |
| Dolgencorp, LLC | FAMOTIDINE 10 mg/1; CALCIUM CARBONATE 800 mg/1; MAGNESIUM HYDROXIDE 165 mg/1 | Aug 26, 2026 | Sep 2, 2026 |
| H E B | FAMOTIDINE 10 mg/1; CALCIUM CARBONATE 800 mg/1; MAGNESIUM HYDROXIDE 165 mg/1 | Aug 26, 2026 | Sep 2, 2026 |
| HyVee Inc | FAMOTIDINE 10 mg/1; CALCIUM CARBONATE 800 mg/1; MAGNESIUM HYDROXIDE 165 mg/1 | Aug 26, 2026 | Sep 2, 2026 |
| Kroger Company | FAMOTIDINE 10 mg/1; CALCIUM CARBONATE 800 mg/1; MAGNESIUM HYDROXIDE 165 mg/1 | Aug 26, 2026 | Sep 2, 2026 |
| Meijer Distribution Inc | FAMOTIDINE 10 mg/1; CALCIUM CARBONATE 800 mg/1; MAGNESIUM HYDROXIDE 165 mg/1 | Aug 26, 2026 | Sep 2, 2026 |
| Publix Super Markets Inc | FAMOTIDINE 10 mg/1; CALCIUM CARBONATE 800 mg/1; MAGNESIUM HYDROXIDE 165 mg/1 | Aug 26, 2026 | Sep 2, 2026 |
| Rite Aid Corporation | FAMOTIDINE 10 mg/1; MAGNESIUM HYDROXIDE 165 mg/1; CALCIUM CARBONATE 800 mg/1 | Aug 26, 2026 | Sep 2, 2026 |
| Strategic Sourcing Services LLC | FAMOTIDINE 10 mg/1; CALCIUM CARBONATE 800 mg/1; MAGNESIUM HYDROXIDE 165 mg/1 | Aug 26, 2026 | Sep 2, 2026 |
| Target Corporation | FAMOTIDINE 10 mg/1; CALCIUM CARBONATE 800 mg/1; MAGNESIUM HYDROXIDE 165 mg/1 | Aug 26, 2026 | Sep 2, 2026 |
| Topco Associates LLC | FAMOTIDINE 10 mg/1; CALCIUM CARBONATE 800 mg/1; MAGNESIUM HYDROXIDE 165 mg/1 | Aug 26, 2026 | Sep 2, 2026 |
| United Natural Foods, Inc. dba UNFI | FAMOTIDINE 10 mg/1; CALCIUM CARBONATE 800 mg/1; MAGNESIUM HYDROXIDE 165 mg/1 | Aug 26, 2026 | Sep 2, 2026 |
| Wal-Mart Stores Inc | FAMOTIDINE 10 mg/1; CALCIUM CARBONATE 800 mg/1; MAGNESIUM HYDROXIDE 165 mg/1 | Aug 26, 2026 | Sep 2, 2026 |
| Walgreen Company | FAMOTIDINE 10 mg/1; CALCIUM CARBONATE 800 mg/1; MAGNESIUM HYDROXIDE 165 mg/1 | Aug 26, 2026 | Sep 2, 2026 |
| Amazon.com Services LLC | FAMOTIDINE 10 mg/1; CALCIUM CARBONATE 800 mg/1; MAGNESIUM HYDROXIDE 165 mg/1 | Aug 26, 2026 | Aug 31, 2026 |
| L. Perrigo Company | FAMOTIDINE 10 mg/1; CALCIUM CARBONATE 800 mg/1; MAGNESIUM HYDROXIDE 165 mg/1 | Aug 26, 2026 | Aug 28, 2026 |
| Amazon.com Services LLC | FAMOTIDINE 800 mg/1; CALCIUM CARBONATE 10 mg/1; MAGNESIUM HYDROXIDE 165 mg/1 | Jul 22, 2026 | Aug 25, 2026 |
| L. Perrigo Company | FAMOTIDINE 800 mg/1; CALCIUM CARBONATE 10 mg/1; MAGNESIUM HYDROXIDE 165 mg/1 | Jul 22, 2026 | Aug 22, 2026 |
| Safeway | FAMOTIDINE 800 mg/1; CALCIUM CARBONATE 10 mg/1; MAGNESIUM HYDROXIDE 165 mg/1 | Jul 22, 2026 | Aug 21, 2026 |
| American Sales Company | FAMOTIDINE 800 mg/1; MAGNESIUM HYDROXIDE 10 mg/1; CALCIUM CARBONATE 165 mg/1 | Jul 22, 2026 | Aug 19, 2026 |
| Amerisource Bergen | FAMOTIDINE 800 mg/1; CALCIUM CARBONATE 10 mg/1; MAGNESIUM HYDROXIDE 165 mg/1 | Jul 22, 2026 | Aug 19, 2026 |
| Cardinal Health 110, LLC. dba Leader | FAMOTIDINE 800 mg/1; CALCIUM CARBONATE 10 mg/1; MAGNESIUM HYDROXIDE 165 mg/1 | Jul 22, 2026 | Aug 19, 2026 |
| CVS Pharmacy | FAMOTIDINE 800 mg/1; MAGNESIUM HYDROXIDE 10 mg/1; CALCIUM CARBONATE 165 mg/1 | Jul 22, 2026 | Aug 19, 2026 |
| Cvs Woonsocket Prescription Center, Incorporated | FAMOTIDINE 800 mg/1; CALCIUM CARBONATE 10 mg/1; MAGNESIUM HYDROXIDE 165 mg/1 | Jul 29, 2026 | Aug 19, 2026 |
| Dolgencorp, LLC | FAMOTIDINE 800 mg/1; CALCIUM CARBONATE 10 mg/1; MAGNESIUM HYDROXIDE 165 mg/1 | Jul 22, 2026 | Aug 19, 2026 |
| H E B | FAMOTIDINE 800 mg/1; CALCIUM CARBONATE 10 mg/1; MAGNESIUM HYDROXIDE 165 mg/1 | Jul 22, 2026 | Aug 19, 2026 |
| HyVee Inc | FAMOTIDINE 800 mg/1; CALCIUM CARBONATE 10 mg/1; MAGNESIUM HYDROXIDE 165 mg/1 | Jul 22, 2026 | Aug 19, 2026 |
| Kroger Company | FAMOTIDINE 800 mg/1; CALCIUM CARBONATE 10 mg/1; MAGNESIUM HYDROXIDE 165 mg/1 | Jul 22, 2026 | Aug 19, 2026 |
| Meijer Distribution Inc | FAMOTIDINE 800 mg/1; CALCIUM CARBONATE 10 mg/1; MAGNESIUM HYDROXIDE 165 mg/1 | Jul 22, 2026 | Aug 19, 2026 |
| Publix Super Markets Inc | FAMOTIDINE 800 mg/1; CALCIUM CARBONATE 10 mg/1; MAGNESIUM HYDROXIDE 165 mg/1 | Jul 22, 2026 | Aug 19, 2026 |
| Rite Aid Corporation | FAMOTIDINE 800 mg/1; MAGNESIUM HYDROXIDE 10 mg/1; CALCIUM CARBONATE 165 mg/1 | Jul 22, 2026 | Aug 19, 2026 |
| Strategic Sourcing Services LLC | FAMOTIDINE 800 mg/1; CALCIUM CARBONATE 10 mg/1; MAGNESIUM HYDROXIDE 165 mg/1 | Jul 22, 2026 | Aug 19, 2026 |
| Target Corporation | FAMOTIDINE 800 mg/1; CALCIUM CARBONATE 10 mg/1; MAGNESIUM HYDROXIDE 165 mg/1 | Jul 22, 2026 | Aug 19, 2026 |
| Topco Associates LLC | FAMOTIDINE 800 mg/1; CALCIUM CARBONATE 10 mg/1; MAGNESIUM HYDROXIDE 165 mg/1 | Jul 22, 2026 | Aug 19, 2026 |
| United Natural Foods, Inc. dba UNFI | FAMOTIDINE 800 mg/1; CALCIUM CARBONATE 10 mg/1; MAGNESIUM HYDROXIDE 165 mg/1 | Jul 22, 2026 | Aug 19, 2026 |
Roster from daily NDC Directory diffs — first/last seen dates start July 2026.
DrugDashboards, "Up And Up Dual Action Acid Reducer Antacid — NDC 82442-0321-71," retrieved September 3, 2026, https://drugdashboards.com/drug/82442032171.
Free to cite with attribution — see how the data is put together.