If you're taking one of these, consult with your doctor before you decide to stop taking the drug. 

Food and Drug Administration officials said all bisphosphonates used for osteoporosis will carry a new warning about rare but serious fractures of the thigh bone, even though it remains unclear if the medicines caused the fractures.

Source: FDA warns of thigh fractures with bone drugs | Reuters

I know that some lawyers are handling fracture lawsuits.  If you'd like me to put you in touch with one of those lawyers, just drop me a line.