Why is ranitidine not available?

Ranitidine is not available due to safety concerns related to the presence of N-nitrosodimethylamine (NDMA), a potential carcinogen found in some formulations. In 2019, the U.S. Food and Drug Administration (FDA) requested the withdrawal of all ranitidine products from the market, leading to its discontinuation. This decision was made to protect public health while further investigations into the stability and safety of the drug were conducted.