My 70 year old mother starting taking Fosamax a few weeks ago because her bone density test showed she had osteoporosis. She became quite ill soon afterwards, said she had the worst headache of her life, couldn't eat, had nausea, severe head pain, and dizziness. She was in bed for a week. Her doc said maybe it was a swollen temporal artery (huh?), and put her on strong pain meds, which she said didn't even touch the pain. After reading the other comments on this website, I called her and told her to not take another dose. Merck is being sued over this drug. How many women have to suffer horrific side effects, including loss of their jaws, before they pull this crap off the market?? It's all about maximizing their profits, folks, and those pharmaceutical companies will ruin your health with their poisons to make a buck.