A new study of osteoporosis drugs had some disappointing results. Some women take medicines called bisphosphonates,after menopause, to help protect them from osteoporosis. The drugs like Fosamax and Boniva work to improve bone density and prevent fractures.
Earlier research suggested that the medicines may also reduce a woman's chances of developing breast cancer .
But a new study of 14,000 women found no link between bisphosphonates and a reduced risk of breast cancer in older women.
Researchers say women can keep taking the drugs as a treatment or prevention for osteoporisis, but they shouldn't expect to be protected against breast cancer.