Generics Ireland-headquartered generic drugmaker Actavis revealed on Friday (February 28) that French pharma giant Sanofi had filed suit on February 26, in the US District Court for the District of Delaware, seeking to prevent Actavis from commercializing its Abbreviated New Drug Application for a generic version of Multaq (dronedarone) prior to the expiry of certain US patents. 2 March 2014