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.
carboxymethylcellulose sodium and glycerin · CARBOXYMETHYLCELLULOSE SODIUM 10 mg/mL; GLYCERIN 9 mg/mL · Solution/ Drops · Ophthalmic · Allergan, Inc.
NDC 00023-5459-02 · 1 BOTTLE, DROPPER in 1 CARTON / 2 mL in 1 BOTTLE, DROPPER · OTC MONOGRAPH DRUG · View full market →
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.
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 →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 |
|---|---|---|---|
| Allergan, Inc. | CARBOXYMETHYLCELLULOSE SODIUM 5 mg/mL; GLYCERIN 10 mg/mL | Jul 15, 2026 | Sep 3, 2026 |
| Allergan, Inc. | CARBOXYMETHYLCELLULOSE SODIUM 5 mg/mL; GLYCERIN 9 mg/mL | Jul 15, 2026 | Sep 3, 2026 |
| Allergan, Inc. | CARBOXYMETHYLCELLULOSE SODIUM 10 mg/mL; GLYCERIN 9 mg/mL | Jul 15, 2026 | Sep 2, 2026 |
Roster from daily NDC Directory diffs — first/last seen dates start July 2026.
DrugDashboards, "REFRESH OPTIVE Drops — NDC 00023-5459-02," retrieved September 3, 2026, https://drugdashboards.com/drug/00023545902.
Free to cite with attribution — see how the data is put together.