abemaciclib
(uh-BEH-muh-SY-klib)
A drug used alone or with other drugs to treat adults with certain types of hormone-receptor positive, HER2-negative breast cancer. It is also being studied in the treatment of other types of cancer. Abemaciclib blocks certain proteins, which may help keep cancer cells from growing. It is a type of cyclin-dependent kinase inhibitor. Also called Verzenio.