Product Information
METFORMIN ER 500 MG OSMOTIC TB is a generic product labeled by Westminster Pharmaceuticals LLC, priced at $0.1644 per EA under NDC 69367041260. Its NADAC has been published 46 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
500 mg/1
Manufacturer
Westminster Pharmaceuticals LLCNDC
69367041260
Classification
Generic
Dosage Form
TABLET, FILM COATED, EXTENDED RELEASE
Route
ORAL
Effective Date
9/23/2026
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 500 MG OSMOTIC TB has been published 46 times since Nov 19, 2025, and over the history we have for it it has risen 6.7%. The table below summarizes its recorded NADAC range and movement.
| Current price | $0.1644 per EA |
|---|---|
| All-time high | $0.1644 (Sep 30, 2026) |
| All-time low | $0.1017 (Apr 22, 2026) |
| 52-week high | $0.1644 |
| 52-week low | $0.1017 |
| Median price | $0.1164 |
| Average price | $0.1211 |
| Largest weekly change | +18.9% (Aug 19, 2026) |
| Weeks tracked | 46 |
| Tracking since | Nov 19, 2025 |
Generic Alternatives
The matcher finds 10 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 92% at current NADAC. These are candidates to verify clinically, not guaranteed substitutes — see our generic drug prices guide.
Related Drugs
Same classification
Continue researching this drug
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Manufacturer
Westminster Pharmaceuticals LLC manufacturer profile
See the full portfolio, pricing trend, and other products from this labeler.
Drug market
METFORMIN HYDROCHLORIDE market comparison
Compare this molecule across participating manufacturers and inspect the broader market price spread.
Therapeutic class
Biguanide class view
See how this drug behaves alongside other products in the same FDA pharmacologic class.
Trend hub
Latest market trends
Zoom back out to the weekly mover view and compare this NDC with the rest of the current NADAC release.
Guide
Understanding NADAC pricing
Use the explainer when you need context on how CMS publishes NADAC and how to interpret the number on this page.
Frequently asked questions
What is the NADAC price of METFORMIN ER 500 MG OSMOTIC TB?
The current National Average Drug Acquisition Cost (NADAC) for METFORMIN ER 500 MG OSMOTIC TB, manufactured by Westminster Pharmaceuticals LLC, is $0.1644 per EA (NDC 69367041260), effective Sep 30, 2026.
How has the price of METFORMIN ER 500 MG OSMOTIC TB changed over time?
Over the history we have for it, the NADAC for METFORMIN ER 500 MG OSMOTIC TB has risen 6.7%. It has been tracked across 46 weekly CMS publications since Nov 19, 2025.
What are the highest and lowest recorded NADAC prices for METFORMIN ER 500 MG OSMOTIC TB?
Since Nov 19, 2025, the NADAC for METFORMIN ER 500 MG OSMOTIC TB has ranged from a low of $0.1017 (Apr 22, 2026) to a high of $0.1644 (Sep 30, 2026), with a median of $0.1164 per EA.
Are there cheaper alternatives to METFORMIN ER 500 MG OSMOTIC TB?
Yes. 10 manufacturers publish a NADAC-priced product with the same active ingredient and strength in a comparable dosage form. The lowest-priced option, METFORMIN HCL 500 MG TABLET, is $0.0140 per EA — about 92% below METFORMIN ER 500 MG OSMOTIC TB.
Who manufactures METFORMIN ER 500 MG OSMOTIC TB?
METFORMIN ER 500 MG OSMOTIC TB (NDC 69367041260) is labeled by Westminster Pharmaceuticals LLC, and CMS classifies it as a generic product.