PITTSBURGH — A group of drug makers have sued Mylan over its attempt to gain Food and Drug Administration approval for a generic menopause drug, Mylan said Tuesday.

The FDA has approved revisions to the safety labeling for 2 estradiol transdermal systems (Vivelle, Vivelle-Dot), 100-mg ibuprofen tablets (Junior Advil), amlodipine besylate/benazepril HCl ...