Bisphosphonates are a class of medications commonly used to prevent bone loss and osteoporosis. Now, it seems these medications might have an additional benefit: protection against certain cancers.

Past studies have raised concerns that a type of osteoporosis drug may boost the risk of unusual bone fractures. Now research suggests this risk may be overstated.

A class of drugs known as bisphosphonates has received some bad press lately. These drugs, used to strengthen bones and treat bone metastasis, are linked with a number of health conditions. The association with cancer has expanded.

They're designed to strengthen bones. This class of drugs known as bisphosphorates is also prescribed to cancer patients to treat excessive calcium in the blood. These drugs can actually increase the risks of unusual bone fractures.

Multiple myeloma  is a cancer of the blood cells. It grows in the bone marrow, and can cause long bones like the thigh bone (femur) and bones in the spine to break. Drug therapy with a class of drugs can help to prevent these fractures.