Product Information
METFORMIN ER 1,000 MG OSM-TAB is a generic product labeled by Westminster Pharmaceuticals LLC, priced at $0.3262 per EA under NDC 69367041360. Its NADAC has been published 40 times since Nov 19, 2025.
FDA first approved this application on Dec 26, 2017. Its Orange Book therapeutic-equivalence code is AB2 — FDA rates it therapeutically equivalent to (substitutable for) its reference product.
Strength
1000 mg/1
Manufacturer
Westminster Pharmaceuticals LLCNDC
69367041360
Classification
Generic
Dosage Form
TABLET, FILM COATED, EXTENDED RELEASE
Route
ORAL
Effective Date
8/19/2026
Active Ingredients
METFORMIN HYDROCHLORIDEApproval Type
Generic (ANDA)
FDA Application
ANDA203832FDA Approved
12/26/2017
TE Code
AB2
On Market Since
10/23/2025
Pharmacological Classes
Price Statistics
The NADAC for METFORMIN ER 1,000 MG OSM-TAB has been published 40 times since Nov 19, 2025, and over the history we have for it it has risen 15.4%. The table below summarizes its recorded NADAC range and movement.
| Current price | $0.3262 per EA |
|---|---|
| All-time high | $0.3262 (Aug 19, 2026) |
| All-time low | $0.2243 (Feb 18, 2026) |
| 52-week high | $0.3262 |
| 52-week low | $0.2243 |
| Median price | $0.2676 |
| Average price | $0.2714 |
| Largest weekly change | +20.5% (May 20, 2026) |
| Weeks tracked | 40 |
| Tracking since | Nov 19, 2025 |
Generic Alternatives
The matcher finds 7 manufacturers offering a NADAC-published product with this drug's active ingredient and strength in a comparable dosage form (cheapest from each manufacturer, up to 10 shown below). Switching to the cheapest would cut per-unit acquisition cost by roughly 93% at current NADAC. These are candidates to verify clinically, not guaranteed substitutes — see our generic drug prices guide.
Related Drugs
Same classification
Frequently asked questions
What is the NADAC price of METFORMIN ER 1,000 MG OSM-TAB?
The current National Average Drug Acquisition Cost (NADAC) for METFORMIN ER 1,000 MG OSM-TAB, manufactured by Westminster Pharmaceuticals LLC, is $0.3262 per EA (NDC 69367041360), effective Aug 19, 2026.
How has the price of METFORMIN ER 1,000 MG OSM-TAB changed over time?
Over the history we have for it, the NADAC for METFORMIN ER 1,000 MG OSM-TAB has risen 15.4%. It has been tracked across 40 weekly CMS publications since Nov 19, 2025.
What are the highest and lowest recorded NADAC prices for METFORMIN ER 1,000 MG OSM-TAB?
Since Nov 19, 2025, the NADAC for METFORMIN ER 1,000 MG OSM-TAB has ranged from a low of $0.2243 (Feb 18, 2026) to a high of $0.3262 (Aug 19, 2026), with a median of $0.2676 per EA.
Are there cheaper alternatives to METFORMIN ER 1,000 MG OSM-TAB?
Yes. 7 manufacturers publish a NADAC-priced product with the same active ingredient and strength in a comparable dosage form. The lowest-priced option, METFORMIN HCL 1,000 MG TABLET, is $0.0231 per EA — about 93% below METFORMIN ER 1,000 MG OSM-TAB.
Who manufactures METFORMIN ER 1,000 MG OSM-TAB?
METFORMIN ER 1,000 MG OSM-TAB (NDC 69367041360) is labeled by Westminster Pharmaceuticals LLC, and CMS classifies it as a generic product.