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# Viona Recalls Metformin for NDMA Impurity
- URL: https://www.fdaweb.com/viona-recalls-metformin-for-ndma-impurity/
- Published: 2022-01-03T12:00:00.000Z
- Updated: 2026-09-14T17:26:30.000Z
- Author: David McFarland
- Tags: Drugs, #legacy-id-D5150842

FDA says Viona Pharmaceuticals has recalled 33 lots of metformin HCl extended-release tablets 750 mg having valid shelf life due to an out-of-specification result observed for the product that detected N-nitrosodimethylamine. An agency [notice](https://www.fda.gov/safety/recalls-market-withdrawals-safety-alerts/viona-pharmaceuticals-inc-issues-voluntary-nationwide-recall-metformin-hcl-extended-release-tablets-0?ref=fdaweb.com) says the product was manufactured by Cadila Healthcare Limited, Ahmedabad, India, for U.S. distribution by Viona. To date, it says, neither Viona nor Cadila have received any reports of adverse events related to the recall.