Eli Lilly's Cymbalta might make the leap from psychiatric med to arthritis treatment. The company announced today that a study showed that 59 percent of patients saw their pain cut by 30 percent with Cymbalta, and 47 percent had a 50 percent reduction. That's compared with 45 percent and 29 percent on placebo, respectively. It wouldn't be Cymbalta's first painkilling indication; it's also approved for diabetic nerve pain. Report