Description: Older women who take antiseizure drugs are at increased risk for developing osteoporosis, according to findings from one of the largest and longest studies of bone loss and epilepsy treatment ever reported. Researchers found that elderly women who took drugs to control their epilepsy lost bone mass at nearly twice the rate of women who did not. This translated into a 29% increase in the risk of hip fractures among the women with epilepsy over a five-year period.