Testing Ranitidine With Too Much Heat Could Generate NDMA, FDA Says

FDA recommends using "Liquid Chromatography-High Resolution Mass Spectrometry Method" for testing ranitidine rather than method apparently used by online pharmacy Valisure, which asked agency to halt production and order recalls.

Research analyst adding reagent to drug to keep tracking chemical reaction - Image

The US Food and Drug Administration says reports of high levels of N-nitrosodimethylamine in the histamine-2 blocker ranitidine resulted from a third-party laboratories' use of the incorrect test for the drug ingredient.

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