CLASS II ONGOING Drug recall · Reported 26 May 2021 · FDA Enforcement Report

Metformin HCl, Extended Release Tab recalled

Preferred Pharmaceuticals is recalling Metformin HCl, Extended Release Tab, distributed in Florida. The recall was initiated on 28 Apr 2021 and the FDA has classified it as Class II.

Check your package

Lot, batch or date codesLot Codes: C2520W,Exp.12/31/2021; E0620F, Exp. 12/31/2021; G2020M, Exp. 4/30/2022; G2720A, Exp. 4/30/2022
Quantity recalled147 bottles (14,700 extended release tablets)

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-0385-2021
FDA event ID
87833
Recalling firm
Preferred Pharmaceuticals, Anaheim, CA
Classification
Class II
Status
Ongoing
Recall initiated
28 Apr 2021
FDA classified
16 May 2021
Reported
26 May 2021
Type
Voluntary: Firm initiated
Customers notified by
N/A
Reason category
Nitrosamine Impurity

Timeline

28 Apr 2021Recall initiated by company
16 May 2021Classified by FDA+18 days
26 May 2021Published in enforcement report+10 days

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

Reason for recall

CMGP Deviations: Presence of NDMA impurity detected in product and exceed the Acceptable Daily Intake Limit (ADI) of 96ng/day.

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

Preferred Pharmaceuticals Inc., Metformin HCl, Extended Release Tab. USP 500 mg, Generic for Glucophage XR, Rx Only, Pkg Size: 100, Mfg: Time-Cap Labs Inc.; Farmingdale NY, NDC #: 68788-6932-1

Where it was distributed

Distributed to two physician consignees located in FL.

Florida

Questions about this recall

Why was it recalled?

CMGP Deviations: Presence of NDMA impurity detected in product and exceed the Acceptable Daily Intake Limit (ADI) of 96ng/day.

Which lots are affected?

Lot Codes: C2520W,Exp.12/31/2021; E0620F, Exp. 12/31/2021; G2020M, Exp. 4/30/2022; G2720A, Exp. 4/30/2022

Where was it sold?

Distributed to two physician consignees located in FL.

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.

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