PillOTC · Tablet, Chewable · Oral
Calcium Carbonate
Brands: Amazon Ultra Strength Antacid · Antacid · Antacid Extra Strength · Antacid Ultra Strength +274 · Calcium Carbonate
94 ACTIVE SUPPLIERS — US
openFDA · updated weekly
US397 NDCs
94 active makers
94 active makers
UKComing
soon
soon
CAComing
soon
soon
AUComing
soon
soon
EUComing
soon
soon
ATC—
RxCUI (US)—
US makers95 labelers
Packages517
DEA / ScheduleNone
US acquisition costNADAC · per unit
Average across 23 priced NDCs. A benchmark of pharmacy acquisition cost — not a retail quote.
$0.028
Latest avg · Jun 17, 2026
+1%
Since Dec 17, 2025
94
Active US suppliers
17%
Top-2 supplier share*
Who makes it94 active · 1 exited
US labelers as registered with FDA. Repackagers relabel another company's product; share* is of listed packages, not sales.
| Labeler | Type | Packages | Status |
|---|---|---|---|
| Haleon US Holdings LLC | unknown | 63 | SUPPLYING |
| Ginger Health Company | unknown | 24 | SUPPLYING |
| Meijer Distribution, Inc | unknown | 18 | SUPPLYING |
| Bayer HealthCare LLC. | unknown | 17 | SUPPLYING |
| Unifirst First Aid Corporation | unknown | 16 | SUPPLYING |
| Topco Associates LLC | unknown | 16 | SUPPLYING |
| CVS | unknown | 16 | SUPPLYING |
| Rite Aid Corporation | unknown | 15 | SUPPLYING |
| CVS Pharmacy | unknown | 15 | SUPPLYING |
| United Natural Foods, Inc. dba UNFI | unknown | 13 | SUPPLYING |
| Wal-Mart Stores, Inc. | unknown | 13 | SUPPLYING |
| TARGET CORPORATION | unknown | 11 | SUPPLYING |
| KROGER COMPANY | unknown | 11 | SUPPLYING |
| HEB | unknown | 10 | SUPPLYING |
| WALGREEN COMPANY | unknown | 10 | SUPPLYING |
+ 80 more labelers
Regulatory & supply events
No recalls, shortages, or registration changes on record for this drug concept.