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# FDA Orders 5 Firms to Recall Metformin
- URL: https://www.fdaweb.com/fda-orders-5-firms-to-recall-metformin/
- Published: 2020-05-29T12:00:00.000Z
- Updated: 2026-09-14T16:16:28.000Z
- Author: David McFarland
- Tags: Drugs, #legacy-id-D5146893

FDA says five drug firms will need to recall their metformin for diabetes drug products after sampling detected the impurity N-Nitrosodimethylamine (NDMA) above the agency’s acceptable intake limit ([see earlier story](https://www.fdaweb.com/fda-now-worried-about-metformin-containing-carcinogen/)). The agency contacted the firms and their recall notices will be posted accordingly on [FDA’s Web site](https://www.fda.gov/safety/recalls-market-withdrawals-safety-alerts?ref=fdaweb.com). “There are additional manufacturers of the metformin ER formulation that supply a significant portion of the U.S. market, and their products are not being recalled,” it says.

The [agency notes](https://www.fda.gov/news-events/press-announcements/fda-alerts-patients-and-health-care-professionals-nitrosamine-impurity-findings-certain-metformin?utm%5Fcampaign=052820%5FPR%5FFDA%20Finds%20Impurities%20in%20Certain%20Metformin%20ER%20Products&utm%5Fmedium=email&utm%5Fsource=Eloqua) that patients should continue taking metformin tablets even after recalls occur, until they consult with their health care professional who can prescribe a replacement. Patients with Type 2 diabetes could face dangerous health risks if they stop taking their prescription drug. It also recommends that health care professionals continue to prescribe metformin when clinically appropriate.