Metformin HCl Extended Release (Preferred) – NDMA Impurity (2021)
Class II: A situation in which use of, or exposure to, a violative product may cause temporary or medically reversible adverse health consequences or where the probability of serious adverse health consequences is remote
Class II recall indicates potential for temporary health effects.
This AI-generated summary is provided for general informational purposes only and is derived from publicly available recall notices. It supplements but does not replace official agency classifications or safety instructions.
Check Your Product
According to the U.S. Food and Drug Administration (FDA)
Product
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
Brand
Preferred Pharmaceuticals, Inc.
Lot Codes / Batch Numbers
Lot Codes: C2520W, Exp.12/31/2021, E0620F, Exp. 12/31/2021, G2020M, Exp. 4/30/2022, G2720A, Exp. 4/30/2022
Products Sold
Lot Codes: C2520W,Exp.12/31/2021; E0620F, Exp. 12/31/2021; G2020M, Exp. 4/30/2022; G2720A, Exp. 4/30/2022
Preferred Pharmaceuticals, Inc. is recalling Preferred Pharmaceuticals Inc., Metformin HCl, Extended Release Tab. USP 500 mg, Generic for Glucoph due to CMGP Deviations: Presence of NDMA impurity detected in product and exceed the Acceptable Daily Intake Limit (ADI) of 96ng/day.. This is a Class I recall, indicating a high risk of serious health consequences. Based on FDA drug enforcement report.
Summary derived from FDA notice
Reason for Recall
As stated by FDA
CMGP Deviations: Presence of NDMA impurity detected in product and exceed the Acceptable Daily Intake Limit (ADI) of 96ng/day.
Recommended Action
Per FDA guidance
Consumers should stop using the product and contact the recalling firm, their healthcare provider, or return it to the place of purchase.
Verify this information on the official source
For complete details and official instructions, check the U.S. Food and Drug Administration (FDA) directly.
View official FDA recall noticeDistribution
As reported by FDA
FL, IN
Page updated: Jan 7, 2026