Ranbaxy Exclusivity Implosion Pushes Valcyte Generics Towards Launch; Nexium Remains ‘Very Hazy’

FDA rescinds Ranbaxy’s esomeprazole and valganciclovir ANDA tentative approvals because of GMP compliance issues; firm loses its 180-day marketing exclusivity for valganciclovir but not for esomeprazole.