AUSTIN, Texas--(BUSINESS WIRE)--Covidien (NYSE: COV), a leading global provider of healthcare products, announced the results of two studies that compare the physical and pharmacological properties of once-daily hydromorphone extended-release (ER) tablets to immediate-release (IR) hydromorphone and other ER opioids. The studies will be presented at the American Pain Society’s Annual Scientific Meeting being held here May 19-21.
