1. US Food and Drug Administration. Glenmark Pharmaceuticals Inc, USA voluntarily recalls all unexpired lots of its ranitidine tablets and ceases distribution, due to possible presence of N-nitrosodimethylamine (NDMA) impurity. Dec 2019. https://www.fda.gov/safety/recalls-market-withdrawals-safety-alerts/glenmark-pharmaceuticals-inc-usa-voluntarily-recalls-all-unexpired-lots-its-ranitidine-tablets-and.
2. FDA recalls ranitidine medicines over potential cancer causing impurity
3. Ranitidine: all products are out of stock as investigations continue
4. US Food and Drug Administration. FDA updates and press announcements on NDMA in Zantac (ranitidine). 18 Dec 2019. https://www.fda.gov/drugs/drug-safety-and-availability/fda-updates-and-press-announcements-ndma-zantac-ranitidine.