Silver Book Fact
Risedronate, a bisphosphonate, has been shown to reduce vertebral fractures by around 41%, hip fractures by 30%, and non-vertebral fractures by 39%.
Harris S, Watts N, Genant H, McKeever C, et al. Effects of Risedronate Treatment on Vertebral and Nonvertebral Fractures in Women with Postmenopausal Osteoporosis: A randomized controlled trial. JAMA. 1999; 282(14): 1344-52. http://jama.ama-assn.org/cgi/content/abstract/282/14/1344