FDA Recalls More Metformin Extended-Release Tablets Because of NDMA Levels

Catherine Hackett

June 14, 2021

Two lots of metformin HCl extended-release tablets have been recalled by Viona Pharmaceuticals because unacceptable levels of nitrosodimethylamine (NDMA), a likely carcinogen, were found in the 750-mg tablets.

According to a June 11 alert from the Food and Drug Administration, the affected lot numbers are M915601 and M915602.

This generic product was made by Cadila Healthcare, Ahmedabad, India, in November 2019 with an expiration date of October 2021, and distributed throughout the United States. The pill is white to off-white, capsule-shaped, uncoated tablets, debossed with "Z", "C" on one side and "20" on the other side.

Viona Pharma recalled metformin HCl 750-mg extended release tablets with this label.

No adverse events related to the lots involved in the recall have been reported, the FDA said. It also recommends that clinicians continue to prescribe metformin when clinically appropriate.

In late 2019, the FDA announced it had become aware of NDMA in some metformin products in other countries. The agency immediately began testing to determine whether the metformin in the U.S. supply was at risk, as part of the ongoing investigation into nitrosamine impurities across medication types, which included recalls of hypertension and heartburn medications within the past 3 years.

In February 2020, the FDA reported that they hadn't found NDMA levels that exceeded the acceptable daily intake. But starting in May 2020, voluntary recalls by, numerous manufacturers have been announced as levels of the compound exceeded that cutoff.

This article originally appeared on MDedge.com, part of the Medscape Professional Network

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