Norwich Pharmaceuticals has failed to get around an unfavorable US patent-infringement ruling over Bausch Health’s Xifaxan (rifaximin) by filing an amended ‘skinny label’ abbreviated new drug application with patent protected indications carved from the label.
Had it succeeded in its motion before a US district court in Delaware, Norwich would sought to have launched its proposed rifaximin skinny label generic for its irritable bowel syndrome with diarrhea (IBS-D) indication