Zoetis Sues Dechra Over Copy of Drug to Treat Dog, Cat Vomiting

Zoetis, the maker of Cerenia, an injectable drug used to treat severe vomiting in cats and dogs, claimed in a lawsuit that Dechra’s generic version, Emavert, infringes a patent.

• Zoetis is seeking court order blocking Dechra from making its product until patent has expired and cash compensation if it’s made before then, according to complaint filed Friday in federal court in Wilmington, Delaware
• Patent is titled “Antimicrobial Preservatives to Achieve Multi-dose Formulation Using Beta-Cyclodextrins for Liquid Dosage Forms,” complaint says, and expires in January 2027: supplemental filing
• Patent for Cerenia’s active ingredient, maropitant, has expired, but “formulation patents ...