MYL - FDA OKs Mylan's generic version of Biogen MS med Tecfidera August, 18 2020 03:36 PM Mylan N.V. The FDA has approved Mylan's (MYL -0.6%) generic version of Biogen's (BIIB -0.3%) top seller Tecfidera (dimethyl fumarate).More news on: Mylan, Inc., Biogen Inc., Healthcare stocks news, Read more ...