Novartis said claims of price fixing against the drugmaker’s Sandoz generics unit amid a U.S. probe of 20 drugmakers are without merit, with the Swiss company vowing to fight allegations in a lawsuit.

A U.S. appeals court upheld a ruling that invalidated a crucial J&J patent on its blockbuster rheumatoid arthritis drug Remicade.

Allergan Plc was sued by Shire Plc for allegedly scheming to block doctors from prescribing its new treatment for dry eye disease.

Mallinckrodt ARD Inc. will pay $100 million to settle federal complaints the company violated antitrust laws after acquiring the rights to an ACTH drug.