Bisphosphonates for Metastatic Cancer
Pamidronate and zoledronic acid are given in IVs (intravenously) to treat cancer that has spread to the bone. Usually treatment is needed only once a month.
How It Works
Cancer cells that have spread to the bone upset the normal cellular activity in the bone. Bisphosphonates slow the activity of these cancer cells and help to reduce the breakdown of the bone. This relieves pain and helps keep bones from breaking.
Why It Is Used
Bisphosphonates are used to treat bone pain caused by cancer that has spread to bone (bone metastasis). They also help reduce pain from cancers that begin in the bone, such as multiple myeloma.
How Well It Works
Side effects of bisphosphonates can include:
Possible side effects that can occur but are not common include:
Some people taking bisphosphonates have problems with bone decay or delayed bone healing, particularly in the jaw. If you are taking bisphosphonates and need dental surgery, talk with your doctor about the risk of problems with bone healing.
See Drug Reference for a full list of side effects. (Drug Reference is not available in all systems.)
What To Think About
Bisphosphonates are not usually recommended for people with severe kidney disease. Your doctor will test your kidney function before prescribing bisphosphonates, especially if you are considering zoledronic acid (Zometa).
If you are considering a bisphosphonate that is taken by mouth, be sure to tell your doctor if you have ever had serious heartburn or problems with your esophagus (the tube that connects your throat to your stomach).
Your doctor may suggest that you take calcium and vitamin D supplements while taking bisphosphonates to help keep your bones strong. But be sure to talk with your doctor before taking a vitamin or mineral supplement, because some minerals can interfere with the way these drugs work.
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