Common osteoporosis drugs linked to 24% lower dementia risk in A massive study of more than 120,000 older adults suggests that common osteoporosis drugs may reduce the risk of Alzheimer’s disease and other dementias by up to 24%. A massive study of more than 120,000 older adults suggests that common osteoporosis drugs may reduce the risk of Alzheimer’s disease and other dementias by up to 24%.