Sanofi pulls Zantac from U.S. and Canada after carcinogen found

NEW YORK (Reuters) - Sanofi SA said on Friday it would recall popular heartburn medicine Zantac in the United States and Canada, after the medicines were linked with a probable cancer-causing impurity. The French drugmaker said it was working with health authorities to determine the level and extent of the recall, which it called a precautionary measure being taken due to possible contamination with a substance called N-nitrosodimethylamine (NDMA).U.S. and European health regulators said..