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 codesHB10019A 03-2021 HB10119A 03-2021 HB10219A 03-2021 HB10319A 03-2021 HD02119A 04-2021 HD03319A 04-2021 HF09118A 06-2020 HF11618A 06-2020 HF15218A 07-2020 HF15318A 07-2020 HJ01418A 09-2020 HJ01518A 09-2020 HJ01618A 09-2020 HJ01718A 09-2020 HJ04718A 09-2020 HK03218A 10-2020 HK03318A 10-2020 HK03418A 10-2020 HK03518A 10-2020 HK03618A 10-2020 HK13718A 11-2020 HK13818A 11-2020 HK13918A 11-2020 HK14018A 11-2020 HK14118A 11-2020 HK14218A 11-2020 HK14318A 11-2020 HK14418A 11-2020 HK14518A 11-2020 HM00118A 11-2020
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-1393-2020
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, 500 mg, 90 count bottle, Rx Only, Distributed by: Amneal Pharmaceuticals LLC Bridgewater, NJ 08807 NDC 53746-0178-90

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?

HB10019A 03-2021 HB10119A 03-2021 HB10219A 03-2021 HB10319A 03-2021 HD02119A 04-2021 HD03319A 04-2021 HF09118A 06-2020 HF11618A 06-2020 HF15218A 07-2020 HF15318A 07-2020 HJ01418A 09-2020 HJ01518A 09-2020 HJ01618A 09-2020 HJ01718A 09-2020 HJ04718A 09-2020 HK03218A 10-2020 HK03318A 10-2020 HK03418A 10-2020 HK03518A 10-2020 HK03618A 10-2020 HK13718A 11-2020 HK13818A 11-2020 HK13918A 11-2020 HK14018A 11-2020 HK14118A 11-2020 HK14218A 11-2020 HK14318A 11-2020 HK14418A 11-2020 HK14518A 11-2020 HM00118A 11-2020

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, 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 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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