Calcium Carbonate · CALCIUM CARBONATE 1250 mg/5mL · Suspension · Oral · PAI Holdings, LLC dba PAI Pharma
NDC 00121-0766-16 · 12 BOTTLE in 1 CASE / 473 mL in 1 BOTTLE · OTC MONOGRAPH DRUG · View full market →
Just 2 companies supply this market — thin enough that a single exit would be felt immediately. The price has held steady around $0.0203 per mL over the past year. Put together: this looks like a healthy supply — the boring kind, which is exactly what you want.
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The same NDC has different prices depending on who is paying. Units differ between rungs — compare within a rung over time, not rung against rung, unless the units match.
Each rung is the newest figure for this NDC from one federal price system, shown with its own unit. Part D is matched by drug name because CMS publishes no NDCs there; it is gross spending, before confidential rebates.
Pipeline and calculations built by Claude (Fable 5) from the public datasets above. Educational only — verify against primary sources before acting.
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 →Some pressure is visible, but not much — here’s everything the score found to count.
The score counts pressure that is already visible — fewer makers, shortages, recalls, falling prices. 0 means none of it; 100 means all of it at once. Recomputed daily · as of Sep 3, 2026
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 →
There's no legal definition — it meets 1 of 6 public criteria. Why that matters →
No FDA shortage reports for this drug or its presentations.
No enforcement reports list this package NDC.
| Labeler | Strength | First seen | Last seen |
|---|---|---|---|
| PAI Holdings, LLC dba PAI Pharma | CALCIUM CARBONATE 1250 mg/5mL | Jul 15, 2026 | Sep 3, 2026 |
| Atlantic Biologicals Corps | CALCIUM CARBONATE 1250 mg/5mL | Jul 15, 2026 | Sep 2, 2026 |
Roster from daily NDC Directory diffs — first/last seen dates start July 2026.
DrugDashboards, "Calcium Carbonate — NDC 00121-0766-16," retrieved September 3, 2026, https://drugdashboards.com/drug/00121076616.
Free to cite with attribution — see how the data is put together.