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

amneal Metformin Hydrochloride Extended-Release Tablets, USP, Bulk recalled

Amneal Pharmaceuticals of New York is recalling amneal Metformin Hydrochloride Extended-Release Tablets, USP, Bulk, 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 codesHA01320A 1/31/2021 HA01420A 1/31/2021 HA06820A 1/31/2021 HB03620A 1/31/2021 HB03720A 1/31/2021 HB03820A 1/31/2021 HB03920A 1/31/2021 HB04020A 1/31/2021 HB04120A 1/31/2021 HB04220A 1/31/2021 HB04320A 2/28/2021 HB04420A 1/31/2021 HB04520A 2/28/2021 HB05020A 2/28/2021 HB05120A 2/28/2021 HB05220A 2/28/2021 HB05320A 2/28/2021 HB05420A 2/28/2021 HB05520A 2/28/2021 HB05620A 2/28/2021 HB07020A 2/28/2021 HB07120A 2/28/2021 HB07220A 2/28/2021 HB07320A 2/28/2021 HB07520A 2/28/2021 HB07620A 2/28/2021 HB07720A 2/28/2021 HB07820A 2/28/2021 HB07920A 2/28/2021 HB08020A 2/28/2021 HB08220A 2/28/2021 HF05519A 6/30/2020 HF05619A 6/30/2020 HF05719A 6/30/2020 HF05819A 6/30/2020 HF05919A 6/30/2020 HF06019A 6/30/2020 HF06119A 6/30/2020 HF06219A 6/30/2020 HF06319A 6/30/2020 HF07719A 6/30/2020 HF07819A 6/30/2020 HF07919A 6/30/2020 HF08019A 6/30/2020 HF08119A 6/30/2020 HF08219A 6/30/2020 HF08319A 6/30/2020 HF08419A 6/30/2020 HF08519A 6/30/2020 HF08619A 6/30/2020 HF10119A 6/30/2020 HF10219A 6/30/2020 HF10319A 6/30/2020 HF10419A 6/30/2020 HF10519A 6/30/2020 HF10619A 6/30/2020 HF10719A 6/30/2020 HF10819A 6/30/2020 HF10919A 6/30/2020 HF11019A 6/30/2020 HF11119A 6/30/2020 HG07219A 7/31/2020 HG07319A 7/31/2020 HG07419A 7/31/2020 HG07519A 7/31/2020 HG07619A 7/31/2020 HG07719A 7/31/2020 HG07819A 7/31/2020 HG07919A 7/31/2020 HG08019A 7/31/2020 HG08119A 7/31/2020 HH00619A 7/31/2020 HH00719A 7/31/2020 HH00819A 7/31/2020 HH00919A 7/31/2020 HH01019A 7/31/2020 HH01119A 8/31/2020 HH01219A 8/31/2020 HH01319A 8/31/2020 HH01419A 8/31/2020 HH01519A 8/31/2020 HH07319A 8/31/2020 HH07419A 8/31/2020 HH07519A 8/31/2020 HH07619A 8/31/2020 HH07719A 8/31/2020 HH07819A 8/31/2020 HH07919A 8/31/2020 HH08019A 8/31/2020 HH08119A 8/31/2020 HH08219A 8/31/2020 HH11119A 10/31/2020 HH11219A 10/31/2020 HH11319A 10/31/2020 HH11419A 10/31/2020 HH11519A 10/31/2020 HH11619A 10/31/2020 HH11719A 10/31/2020 HH11819A 10/31/2020 HH11919A 10/31/2020 HH12019A 10/31/2020 HH12119A 10/31/2020 HH12219A 10/31/2020 HH12319A 10/31/2020 HH12419A 10/31/2020 HH12519A 10/31/2020 HH12619A 10/31/2020 HH12719A 10/31/2020 HH12819A 10/31/2020 HH12919A 10/31/2020 HH13019A 10/31/2020 HL00119A 10/31/2020 HL00219A 11/30/2020 HL00319A 11/30/2020 HL00419A 11/30/2020 HL00519A 11/30/2020 HL00619A 11/30/2020 HL00719A 11/30/2020 HL00819A 11/30/2020 HL00919A 11/30/2020 HL01019A 11/30/2020
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-1350-2020
FDA event ID
85781
Recalling firm
Amneal Pharmaceuticals of New York, Brookhaven, NY
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

Timeline

29 May 2020Recall initiated by company
25 Jun 2020Classified by FDA+27 days
1 Jul 2020Published 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, Bulk, Distributed by: Amneal Pharmaceuticals LLC Bridgewater, NJ 08807 NDC 53746-0178-BULK

Where it was distributed

Nationwide

Nationwide

Questions about this recall

Why was it recalled?

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

Which lots are affected?

HA01320A 1/31/2021 HA01420A 1/31/2021 HA06820A 1/31/2021 HB03620A 1/31/2021 HB03720A 1/31/2021 HB03820A 1/31/2021 HB03920A 1/31/2021 HB04020A 1/31/2021 HB04120A 1/31/2021 HB04220A 1/31/2021 HB04320A 2/28/2021 HB04420A 1/31/2021 HB04520A 2/28/2021 HB05020A 2/28/2021 HB05120A 2/28/2021 HB05220A 2/28/2021 HB05320A 2/28/2021 HB05420A 2/28/2021 HB05520A 2/28/2021 HB05620A 2/28/2021 HB07020A 2/28/2021 HB07120A 2/28/2021 HB07220A 2/28/2021 HB07320A 2/28/2021 HB07520A 2/28/2021 HB07620A 2/28/2021 HB07720A 2/28/2021 HB07820A 2/28/2021 HB07920A 2/28/2021 HB08020A 2/28/2021 HB08220A 2/28/2021 HF05519A 6/30/2020 HF05619A 6/30/2020 HF05719A 6/30/2020 HF05819A 6/30/2020 HF05919A 6/30/2020 HF06019A 6/30/2020 HF06119A 6/30/2020 HF06219A 6/30/2020 HF06319A 6/30/2020 HF07719A 6/30/2020 HF07819A 6/30/2020 HF07919A 6/30/2020 HF08019A 6/30/2020 HF08119A 6/30/2020 HF08219A 6/30/2020 HF08319A 6/30/2020 HF08419A 6/30/2020 HF08519A 6/30/2020 HF08619A 6/30/2020 HF10119A 6/30/2020 HF10219A 6/30/2020 HF10319A 6/30/2020 HF10419A 6/30/2020 HF10519A 6/30/2020 HF10619A 6/30/2020 HF10719A 6/30/2020 HF10819A 6/30/2020 HF10919A 6/30/2020 HF11019A 6/30/2020 HF11119A 6/30/2020 HG07219A 7/31/2020 HG07319A 7/31/2020 HG07419A 7/31/2020 HG07519A 7/31/2020 HG07619A 7/31/2020 HG07719A 7/31/2020 HG07819A 7/31/2020 HG07919A 7/31/2020 HG08019A 7/31/2020 HG08119A 7/31/2020 HH00619A 7/31/2020 HH00719A 7/31/2020 HH00819A 7/31/2020 HH00919A 7/31/2020 HH01019A 7/31/2020 HH01119A 8/31/2020 HH01219A 8/31/2020 HH01319A 8/31/2020 HH01419A 8/31/2020 HH01519A 8/31/2020 HH07319A 8/31/2020 HH07419A 8/31/2020 HH07519A 8/31/2020 HH07619A 8/31/2020 HH07719A 8/31/2020 HH07819A 8/31/2020 HH07919A 8/31/2020 HH08019A 8/31/2020 HH08119A 8/31/2020 HH08219A 8/31/2020 HH11119A 10/31/2020 HH11219A 10/31/2020 HH11319A 10/31/2020 HH11419A 10/31/2020 HH11519A 10/31/2020 HH11619A 10/31/2020 HH11719A 10/31/2020 HH11819A 10/31/2020 HH11919A 10/31/2020 HH12019A 10/31/2020 HH12119A 10/31/2020 HH12219A 10/31/2020 HH12319A 10/31/2020 HH12419A 10/31/2020 HH12519A 10/31/2020 HH12619A 10/31/2020 HH12719A 10/31/2020 HH12819A 10/31/2020 HH12919A 10/31/2020 HH13019A 10/31/2020 HL00119A 10/31/2020 HL00219A 11/30/2020 HL00319A 11/30/2020 HL00419A 11/30/2020 HL00519A 11/30/2020 HL00619A 11/30/2020 HL00719A 11/30/2020 HL00819A 11/30/2020 HL00919A 11/30/2020 HL01019A 11/30/2020

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

Other products in this recall event

11 other products · FDA event 85781

This product is part of a recall event; the main page for the event is amneal Metformin Hydrochloride Extended-Release Tablets, USP, 750 mg recalled.

ReportedClassRecallCompanyReasonWhere
CLASS IIamneal Metformin Hydrochloride Extended-Release Tablets, USP, 750 mg recalledMetformin HydrochlorideAmneal Pharmaceuticals of New YorkNitrosamine ImpurityNationwide
CLASS IIamneal Metformin Hydrochloride Extended-Release Tablets, USP, 750 mg recalledAmneal Pharmaceuticals of New YorkNitrosamine ImpurityNationwide
CLASS IIamneal Metformin Hydrochloride Extended-Release Tablets, 500 mg recalledAmneal Pharmaceuticals of New YorkNitrosamine ImpurityNationwide
CLASS IIamneal Metformin Hydrochloride Extended-Release Tablets, USP, Bulk recalledAmneal Pharmaceuticals of New YorkNitrosamine ImpurityNationwide
CLASS IIamneal Metformin Hydrochloride Extended-Release Tablets, USP, 500 mg recalledAmneal Pharmaceuticals of New YorkNitrosamine ImpurityNationwide
CLASS IIamneal Metformin Hydrochloride Extended-Release Tablets, USP, 500 mg recalledAmneal Pharmaceuticals of New YorkNitrosamine ImpurityNationwide
CLASS IIamneal Metformin Hydrochloride Extended-release Tablets, USP 500 mg recalledMetformin HydrochlorideAmneal Pharmaceuticals of New YorkNitrosamine ImpurityNationwide
CLASS IIamneal Metformin Hydrochloride Extended-Release Tablets, USP, 500 mg recalledAmneal Pharmaceuticals of New YorkNitrosamine ImpurityNationwide
CLASS IIamneal Metformin Hydrochloride Extended-release Tablets, USP, 500 mg recalledMetformin HydrochlorideAmneal Pharmaceuticals of New YorkNitrosamine ImpurityNationwide
CLASS IIamneal Metformin Hydrochloride Extended-Release Tablets, USP, 500 mg recalledAmneal Pharmaceuticals of New YorkNitrosamine ImpurityNationwide
CLASS IIamneal Metformin Hydrochloride Extended-release Tablets, USP, 500 mg recalledMetformin HydrochlorideAmneal Pharmaceuticals of New YorkNitrosamine ImpurityNationwide

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