
Kroger Co. has filed a civil antitrust lawsuit against Sanofi-Aventis, Bristol-Myers Squibb, and Apotex Inc., alleging the three drugmakers have entered into an illegal settlement of a patent lawsuit involving the blood thinner, Plavix (clopidogrel). In documents filed in the U.S. District Court in the Southern District of Ohio, Kroger said the three drug firms, in settling a dispute over the patent for Plavix, agreed to keep the patent protection for the drug in place until 2011.



