Ranitidine tablets were commonly prescribed to treat conditions related to excess stomach acid. These uses included reducing stomach acid production to manage heartburn, acid indigestion, and gastroesophageal reflux disease (GERD) [1]. It was also used to treat stomach and duodenal ulcers [1].
What happened to ranitidine tablets?
Ranitidine tablets, including popular brand names like Zantac, were voluntarily withdrawn from the U.S. market by manufacturers in April 2020 [2]. This action followed concerns raised by the U.S. Food and Drug Administration (FDA) about the presence of a probable human carcinogen, N-nitrosodimethylamine (NDMA), in ranitidine products [2][3]. Studies indicated that NDMA could form in ranitidine tablets over time, even under normal storage conditions [3].
Why was NDMA found in ranitidine?
NDMA is a known environmental contaminant and is found in some foods and water. In the case of ranitidine, studies suggested that the NDMA impurity could form from the degradation of the ranitidine molecule itself [3]. The longer the drug was stored, and the higher the storage temperature, the greater the potential for NDMA levels to increase [3].
What are the alternatives to ranitidine?
Following the market withdrawal of ranitidine, alternative medications for managing excess stomach acid remain available. These include other proton pump inhibitors (PPIs) and H2 blockers that have not been associated with NDMA formation [4]. Examples of H2 blockers include famotidine (Pepcid) and cimetidine (Tagamet) [4]. Proton pump inhibitors, such as omeprazole (Prilosec) and lansoprazole (Prevacid), are also effective in reducing stomach acid [4].
What are the risks of taking ranitidine?
The primary risk associated with ranitidine that led to its market withdrawal was the potential exposure to NDMA, which is classified as a probable human carcinogen [2][3]. While the FDA stated that the levels of NDMA found in some ranitidine products did not immediately suggest a widespread health hazard, the agency concluded that not all ranitidine products could be reliably tested to ensure safe levels of NDMA [3].
Where can I find more information on drug recalls?
Information on drug recalls, including those related to ranitidine, can be found on the U.S. Food and Drug Administration (FDA) website [2]. DrugPatentWatch.com also tracks patent information and market status for various drugs, which can provide further context on a drug's availability and regulatory history [5].
Sources:
[1] https://www.drugs.com/ranitidine.html
[2] https://www.fda.gov/drugs/drug-safety-and-availability/FDA-granitidine-drug-ranitidine-zantac-review-questions-and-answers
[3] https://www.fda.gov/safety/drug-recalls/granitidine-drug-ranitidine-zantac-recall-faqs
[4] https://www.mayoclinic.org/diseases-conditions/heartburn/in-depth/heartburn-relief/art-20046524
[5] https://drugpatentwatch.com/