FDA finds low levels of cancer-linked impurity in common heartburn drugs
12:00pm PDT - September 13th, 2019 zantac - CNNThe US Food and Drug Administration said on Friday that it has learned that some heartburn medicines -- including Zantac -- contain low levels of a nitrosamine impurity known as N-nitrosodimethylamine or NDMA, which is a "probable human carcinogen."