Zantac

In October 2019, a class-action lawsuit was filed against Sanofi for allegedly misleadingly marketing the over-the-counter heartburn medication Zantac as safe when, according to plaintiffs, the medicine contains dangerously high levels of the carcinogen N-nitrosodimethylamine (NDMA). (Rodriguez et al v. Sanofi U.S. LLC et al, Case No. 19-cv-9527, S. D. NY.)