Bisphosphonates are a class of medications used to strengthen bones and prevent fractures by reducing loss of bone density.

Studies have shown that while bisphophonates are prescribed to strengthen bones, they may have the opposite effect on the jaw bone, hip, knee, shoulder and femur. 

The lawyers at Saiontz & Kirk, P.A. are no longer pursuing bisphosphonate cases. This page is maintained for informational purposes only.

Continued use of the medications may block blood flow to the bone resulting in a significantly increased risk of osteonecrosis of the jaw, osteonecrosis of the hip, osteonecrosis of the knee or osteonecrosis of the shoulder. Bone necrosis is a very painful and potentially disabiling condition.

Bisphosphonate medications include:

It has been estimated that over 20 million Americans have taken Fosamax, the oral form of bisphophonate, to treat osteoporosis, osteopenia and Paget’s disease of the bone. Other bisphosphonates administered intravenously are used for treatment of cancer.


Osteonecrosis of the jaw is a severe form of damage to the jawbone, which is extremely painful and potentially disfiguring.  It is an irreversible condition in which the patients jaw bone decays and dies.  It is often associated with a jaw infection, requiring removal of a portion of the jawbone.

There have not been any official warnings or indications that patients should stop taking bisphosphonate medications.  However, experts have agreed that it is important that patients and dentists be made aware of the increased risk of osteonecrosis of the jaw after taking the medication.  Avoiding dental procedures, even as small as a tooth extraction, could significantly reduce the occurrence of osteonecrosis of the jaw.

Those taking bisphosphonates, such as Fosamax, Actonel, Aredia or Zometa, should notify their dentist or dental surgeon before any treatment.  Elective dental procedures should be avoided, and for necessary procedures precautions should be taken to minimize the risk of osteonecrosis of the jaw.


Saiontz & Kirk previously reviewed Fosamax lawsuits against the manufacturer of the popular osteoporosis medication for failing to warn patients and dentists of the known side effect. New cases are no longer being accepted. This page is maintained for informational purposes only.