Drugmaker Teva Pharmaceutical Industries Ltd. plans to appeal a $356 million Las Vegas district court verdict awarded to a plaintiff who says he contracted hepatitis C when one of Teva’s drug vials was used by more than one patient.

A jury in Las Vegas ordered Teva and Baxter Healthcare Corp. to pay a combined $500 million in punitive damages in the first of nearly 250 civil cases stemming from a hepatitis C outbreak related to its drug propofol two years ago.