The Philadelphia Inquirer , "Experts: Patches + heat = danger"

          Medical experts say medicated patches, used by 12 million people for a range of ailments, can become unsafe when heated by exercise, soaking in a hot tub, or even a high fever. And they think patients should be warned.
          A FDA investigation comes eight months after the agency announced a probe into 120 deaths linked to fentanyl patches, which are used for chronic pain. In November, the agency issued a warning about birth-control patches after a study showed that women who wore the patch had 60 percent more estrogen in their blood than those on the pill.
          In the last 25 years, patch medications have morphed from a simple motion-sickness drug to more than 30 prescription patches used by 12 million people worldwide for ailments ranging from bladder control to heart disease. Companies are marketing more and more versions - the first antidepressant patch was approved Monday.