WebMD -- Sept 14, 2010 -- Popular osteoporosis drugs known as bisphosphonates may increase the risk of rare, but painful thigh bone fractures, and their labeling should be updated to reflect this increased risk. That’s the conclusion of a 27-person international task force that was convened by the American Society of Bone and Mineral Research to study the link between these drugs and the unusual (also called atypical) femur fractures.
