methapyrilene
/ˌmɛθəˈpɪrəliːn/
noun
- A synthetic antihistamine drug formerly used in cold and allergy medicines, later banned due to cancer risk.
- Scientists discovered that methapyrilene caused liver tumors in laboratory animals.
- The FDA banned methapyrilene in the 1970s after safety concerns emerged.
- Methapyrilene was once a common ingredient in over-the-counter sleep aids.