http://www.endfatigue.com/web-newsletters/nl_55c_04-21-2010.html
Two new studies suggest that osteoporosis medications (biphosphonates) can cause abnormal bone formation. This suggests that after five years of use, no further benefit is seen and that medication should be stopped for a while, or perhaps even long term. The good news? Natural alternatives are far more effective than the medications and can be used long term. They can even be taken with, or instead of, the medications.