Australia's Mayne Pharma sues Indian drugmaker Sun Pharma over patent infringement

Mayne Pharma sued India's Sun Pharma for allegedly infringing patents on IMVEXXY, a drug for menopause-related vaginal pain. The lawsuit was filed after Sun Pharma sought FDA approval for a generic version. This action might delay FDA approval for Sun Pharma by 30 months under the Hatch-Waxman Act.