CLASS II ONGOING Drug recall · Reported 1 Jul 2020 · FDA Enforcement Report

amneal Metformin Hydrochloride Extended-release Tablets, USP 500 mg recalled

Amneal Pharmaceuticals of New York is recalling amneal Metformin Hydrochloride Extended-release Tablets, USP 500 mg, distributed nationwide in the US. The recall was initiated on 29 May 2020 and the FDA has classified it as Class II.

Check your package

Lot, batch or date codesAM190123A 1/31/2021 AM190193A 1/31/2021 AM190194A 1/31/2021 AM190195A 1/31/2021 AM190196A 1/31/2021 AM190197A 1/31/2021 AM190198A 1/31/2021 AM190199A 1/31/2021 AM190200A 2/28/2021 AM190201A 2/28/2021 AM190202A 2/28/2021 AM190269A 2/28/2021 AM190270A 2/28/2021 AM190271A 2/28/2021 AM190272A 2/28/2021 AM190289A 2/28/2021 AM190290A 2/28/2021 AM190291A 2/28/2021 AM190292A 2/28/2021 AM190293A 2/28/2021 AM190294A 2/28/2021 AM190549A 4/30/2021 AM190550A 4/30/2021 AM190551A 4/30/2021 AM190552A 4/30/2021 AM190553A 4/30/2021 AM190554A 4/30/2021 AM190555A 5/31/2021 AM190556A 5/31/2021 AM190586A 5/31/2021 AM190587A 5/31/2021 AM190588A 5/31/2021 AM190589A 5/31/2021 AM190590A 5/31/2021 AM190605A 5/31/2021 AM190673A 6/30/2021 AM190707A 6/30/2021 AM190708A 6/30/2021 AM190709A 6/30/2021 AM190710A 6/30/2021 AM190714C 6/30/2021 AM190751C 6/30/2021 AM190752C 6/30/2021 AM190753A 8/31/2021 AM190754A 8/31/2021 AM190755A 8/31/2021 AM190756A 8/31/2021 AM190757A 8/31/2021 AM190929A 8/31/2021 AM190930A 8/31/2021 AM190931A 8/31/2021 AM190932A 8/31/2021 AM190933A 8/31/2021 AM190995A 8/31/2021 AM191000A 8/31/2021 AM191001A 8/31/2021 AM191002A 8/31/2021 AM191003A 8/31/2021 AM191034A 9/30/2021 AM191035A 9/30/2021 AM191036A 9/30/2021 AM191037A 9/30/2021 AM191038A 9/30/2021 AM191039A 9/30/2021 AM191086A 9/30/2021

NDC65162-178, 65162-179

UPC0365162178104, 0365162179101

Quantity recalledN/A

Check the lot number on your package against the affected lots. If it matches, contact the pharmacy that dispensed it or your prescriber before stopping any medication.

Recall details

Recall number: D-1344-2020
FDA event ID: 85781
Recalling firm: Amneal Pharmaceuticals of New York, Brookhaven, NY
Brand: Metformin Hydrochloride
Manufacturer: Amneal Pharmaceuticals LLC
Classification: Class II
Status: Ongoing
Recall initiated: 29 May 2020
FDA classified: 25 Jun 2020
Reported: 1 Jul 2020
Type: Voluntary: Firm initiated
Customers notified by: Press Release
Reason category: Nitrosamine Impurity
Drug class: Diabetes Medication

Timeline

29 May 2020	Recall initiated by company
25 Jun 2020	Classified by FDA	+27 days
1 Jul 2020	Published in enforcement report	+6 days

Companies usually start a recall weeks before the FDA classifies and publishes it; the gap above is that lag.

Reason for recall

CGMP Deviations: FDA analysis detected N-Nitrosodimethylamine (NDMA) impurity above the acceptable intake level

Nitrosamines are impurities that can form during drug manufacturing or storage. Above the FDA acceptable intake limit, long-term exposure may raise cancer risk. The FDA advises patients to keep taking the medicine until they have a replacement.

Product as listed by the FDA

amneal Metformin Hydrochloride Extended-release Tablets, USP 500 mg Rx Only 90 Tablets bottles, Manufactured by: Amneal Pharmaceuticals Pvt. Ltd. Ahmedabad, 388213, INDIA Distributed by: Amneal Pharmaceuticals LLC Bridgewater, NJ 08907 NDC 65162-178-09

Where it was distributed

Nationwide

Questions about this recall

Is amneal Metformin Hydrochloride Extended-release Tablets, USP 500 mg recalled?

Yes. Amneal Pharmaceuticals of New York recalled amneal Metformin Hydrochloride Extended-release Tablets, USP 500 mg on 29 May 2020. The recall is Class II and its status is Ongoing. Recall number D-1344-2020.

Why was it recalled?

CGMP Deviations: FDA analysis detected N-Nitrosodimethylamine (NDMA) impurity above the acceptable intake level

Which lots are affected?

AM190123A 1/31/2021 AM190193A 1/31/2021 AM190194A 1/31/2021 AM190195A 1/31/2021 AM190196A 1/31/2021 AM190197A 1/31/2021 AM190198A 1/31/2021 AM190199A 1/31/2021 AM190200A 2/28/2021 AM190201A 2/28/2021 AM190202A 2/28/2021 AM190269A 2/28/2021 AM190270A 2/28/2021 AM190271A 2/28/2021 AM190272A 2/28/2021 AM190289A 2/28/2021 AM190290A 2/28/2021 AM190291A 2/28/2021 AM190292A 2/28/2021 AM190293A 2/28/2021 AM190294A 2/28/2021 AM190549A 4/30/2021 AM190550A 4/30/2021 AM190551A 4/30/2021 AM190552A 4/30/2021 AM190553A 4/30/2021 AM190554A 4/30/2021 AM190555A 5/31/2021 AM190556A 5/31/2021 AM190586A 5/31/2021 AM190587A 5/31/2021 AM190588A 5/31/2021 AM190589A 5/31/2021 AM190590A 5/31/2021 AM190605A 5/31/2021 AM190673A 6/30/2021 AM190707A 6/30/2021 AM190708A 6/30/2021 AM190709A 6/30/2021 AM190710A 6/30/2021 AM190714C 6/30/2021 AM190751C 6/30/2021 AM190752C 6/30/2021 AM190753A 8/31/2021 AM190754A 8/31/2021 AM190755A 8/31/2021 AM190756A 8/31/2021 AM190757A 8/31/2021 AM190929A 8/31/2021 AM190930A 8/31/2021 AM190931A 8/31/2021 AM190932A 8/31/2021 AM190933A 8/31/2021 AM190995A 8/31/2021 AM191000A 8/31/2021 AM191001A 8/31/2021 AM191002A 8/31/2021 AM191003A 8/31/2021 AM191034A 9/30/2021 AM191035A 9/30/2021 AM191036A 9/30/2021 AM191037A 9/30/2021 AM191038A 9/30/2021 AM191039A 9/30/2021 AM191086A 9/30/2021

Where was it sold?

Nationwide

What should I do if I have it?

Check the lot number on your package against the affected lots. If it matches, contact the pharmacy that dispensed it or your prescriber before stopping any medication.

What does Class II mean?

Class II means the product may cause temporary or medically reversible health problems, or the probability of serious harm is remote.

Read the official FDA notice · Source record retrieved 21 Sep 2026. The FDA describes openFDA data as unvalidated; the official notice takes precedence. This page reports the record and gives no medical advice.

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Reported	Class	Recall	Company	Reason	Where
16 Apr 2025Drug	CLASS II	Metformin Hydrochloride Extended-Release Tablets 1000mg recalledMetformin Hydrochloride	Glenmark Pharmaceuticals Inc., U	Manufacturing (CGMP) Deviations	Nationwide
2 Apr 2025Drug	CLASS II	Metformin Hydrochloride Extended- Release 500mg recalledMetformin Hydrochloride	A-S Medication Solutions	Packaging Defects	Nationwide
15 Mar 2023Drug	CLASS II	Metformin hydrochloride Extended-Release Tablets, 1000 mg recalled	Teva Pharmaceuticals USA	Nitrosamine Impurity	CA
2 Feb 2022Drug	CLASS II	Metformin Hydrochloride Extended-Release Tablets, USP 750 mg HDPE recalledMetformin Hydrochloride	Viona Pharmaceuticals	Nitrosamine Impurity	NJ
30 Jun 2021Drug	CLASS II	Metformin Hydrochloride Extended-Release Tablets, USP 750 mg recalledMetformin Hydrochloride	Viona Pharmaceuticals	Nitrosamine Impurity	Nationwide