'Game-Changing' Arthritis Drug Blocks Pain Too Well in Some

An experimental pain-relieving drug has yielded an unexpected finding for patients with osteoarthritis. It's not that the drug doesn't work; indeed, it appears to be remarkably effective against pain in many with arthritic knees. But in some patients, the drug blunted joint pain so powerfully they never felt the warning signs or twinges that they were overdoing it -- and suffered joint destruction as a result. In the quest for new pain relievers with minimal side effects, researchers have been...Full Story
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