Product Information
METFORMIN ER 1,000 MG GASTR-TB is a generic product labeled by ScieGen Pharmaceuticals, Inc., priced at $0.3336 per EA under NDC 50228044690. Its NADAC has been published 260 times since Sep 1, 2021.
FDA first approved this application on Apr 16, 2021. Its Orange Book therapeutic-equivalence code is AB3 — FDA rates it therapeutically equivalent to (substitutable for) its reference product.
Strength
1000 mg/1
Manufacturer
ScieGen Pharmaceuticals, Inc.NDC
50228044690
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
ANDA213334FDA Approved
4/16/2021
TE Code
AB3
On Market Since
4/16/2021
Pharmacological Classes
Price Statistics
The NADAC for METFORMIN ER 1,000 MG GASTR-TB has been published 260 times since Sep 1, 2021, and over the history we have for it it has declined 94.4%. The table below summarizes its recorded NADAC range and movement.
| Current price | $0.3336 per EA |
|---|---|
| All-time high | $7.1715 (Oct 13, 2021) |
| All-time low | $0.3336 (Aug 19, 2026) |
| 52-week high | $0.5124 |
| 52-week low | $0.3336 |
| Median price | $1.2953 |
| Average price | $1.8690 |
| Largest weekly change | +118.1% (Feb 23, 2022) |
| Weeks tracked | 260 |
| Tracking since | Sep 1, 2021 |
Generic Alternatives
The matcher finds 1 manufacturer 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 2% 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 GASTR-TB?
The current National Average Drug Acquisition Cost (NADAC) for METFORMIN ER 1,000 MG GASTR-TB, manufactured by ScieGen Pharmaceuticals, Inc., is $0.3336 per EA (NDC 50228044690), effective Aug 19, 2026.
How has the price of METFORMIN ER 1,000 MG GASTR-TB changed over time?
Over the history we have for it, the NADAC for METFORMIN ER 1,000 MG GASTR-TB has declined 94.4%. It has been tracked across 260 weekly CMS publications since Sep 1, 2021.
What are the highest and lowest recorded NADAC prices for METFORMIN ER 1,000 MG GASTR-TB?
Since Sep 1, 2021, the NADAC for METFORMIN ER 1,000 MG GASTR-TB has ranged from a low of $0.3336 (Aug 19, 2026) to a high of $7.1715 (Oct 13, 2021), with a median of $1.2953 per EA.
Are there cheaper alternatives to METFORMIN ER 1,000 MG GASTR-TB?
Yes. 1 manufacturer publishes a NADAC-priced product with the same active ingredient and strength in a comparable dosage form. The lowest-priced option, METFORMIN ER 1,000 MG OSM-TAB, is $0.3262 per EA — about 2% below METFORMIN ER 1,000 MG GASTR-TB.
Who manufactures METFORMIN ER 1,000 MG GASTR-TB?
METFORMIN ER 1,000 MG GASTR-TB (NDC 50228044690) is labeled by ScieGen Pharmaceuticals, Inc., and CMS classifies it as a generic product.