No evidence of metformin carcinogen contamination: TGA

Concerns that metformin products may contain a carcinogenic N-nitroso impurity have yet to be confirmed and patients should be strongly advised not to stop taking the medication, the TGA says. Following a recent recall of ranitidine products due to contamination with the chemical N-nitrosodimethylamine (NDMA), international regulators are now investigating whether metformin products have also ...

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