Sandoz has settled US patent-litigation proceedings with Bausch Health’s Salix affiliate over the generics company’s application for a rival to the originator’s Xifaxan (rifaximin) 550mg tablets, obtaining a guaranteed market entry date that matches that afforded previously to Teva’s Actavis.
Sandoz Matches Teva On US Rifaximin Launch Date
Company Had Been Sued In October Last Year
Sandoz has joined a fellow major generics player, Teva’s Actavis, in settling itself out of litigation with Bausch Health over Xifaxan 550mg tablets in the US. The two settlement agreements contain key similarities and differences.

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Teva should not be able to overturn European fines imposed over a historical “pay-for-delay” arrangement covering Cephalon’s Provigil (modafinil), an advocate general of the CJEU has recommended.
In a precedential decision, the US Court of Appeals for the Federal Circuit has determined the meaning of the language “the patent” as it applies to patent-term extensions for reissued patents, in the context of Aurobindo’s bid to wipe out a reissued patent shielding Merck & Co’s Bridion (sugammadex) injectable.
Novartis’ multi-front legal battle against MSN Laboratories over its Entresto blockbuster in the US has taken yet another twist, with a federal district court in New Jersey finding that a preliminary injunction was warranted against MSN’s product on the basis of infringement of Novartis’ trade dress.
Walmart has launched an attack on a host of industry-leading generics firms over historical price-fixing allegations, with the US retail giant seeking treble damages from a Pennsylvania district court.
More from Generics Bulletin
Teva should not be able to overturn European fines imposed over a historical “pay-for-delay” arrangement covering Cephalon’s Provigil (modafinil), an advocate general of the CJEU has recommended.
Alvotech has named two new key executives, while Biosimilars Canada has elected its 2025 leaders and the AAM has welcomed the new FDA commissioner in the US.
Generics Bulletin previews the most noteworthy and anticipated events for April 2025.