Here's how I understand it. I have one more infusion remaining of my 3 year course. This drug was originally prescribed to patients to strengthen bones (like other biophosphonates), or guard against bone loss due to the side effects of other drugs (like AI's), but over the course of time, some studies have shown that this particular biophosphonate may have tumor suppression properties. I think the jury is still out on this. However, if there is a small bit of a chance that this might be true, personally I'm going for it. It was prescribed to me by a cancer center. My local oncologist knew nothing about it. My teeth, however, are a mess. That old risk/benefit conversation.