Enlarge / Medical Research: albino rat for animal experiments (credit: Getty | fotografixx) With a straightforward chemical tweak, the addictive—and often deadly—opioid painkiller, fentanyl, may transform into a safe, non-addictive, targeted therapy. Researchers reported this on Thursday in Science. In rats, a chemically modified form of the opioid could only work on inflamed, hurting tissue—not […]
