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Multiple drug manufacturers have issued voluntary drug recalls for several Zantac drug products and its generic, ranitidine. Ranitidine is a histamine-2 receptor antagonist used to treat heartburn and related conditions. Potentially impacted customers are being notified with a recommendation to stop taking the medication and to discuss alternative therapies with their provider. The recalls are due to discovery of an impurity (N-nitrosodimethylamine [NDMA]) in the finished product. NDMA is classified as a probable human carcinogen that may be found in [...]