U.S. FDA flags probable cancer-causing impurity in common heartburn drugs
7:20am PDT - September 13th, 2019 zantac - ReutersThe U.S. Food and Drug Administration said on Friday that some medicines containing ranitidine, including Sanofi SA's Zantac, had traces of a probable cancer-causing impurity called N-nitrosodimethylamine (NDMA) at low levels.