IMPAX Laboratories, Inc. Confirms Patent Challenge Relating to VYTORIN(R), 10 mg/80 mg

HAYWARD, Calif.--(BUSINESS WIRE)--Impax Laboratories, Inc. (NASDAQ: IPXL) today confirms that it has initiated a challenge of patents listed by MSP Singapore Co. LLC in connection with VYTORIN® (ezetimibe/simvastatin), 10 mg/80 mg.