Aclasta contains zoledronic acid (sometimes called zoledronate). It belongs to a group of medicines called bisphosphonates. Zoledronic acid inhibits the release of calcium from bones.
Aclasta is used to treats Paget’s disease and osteoporosis in postmenopausal women.
Aclasta may also be used for other purposes not listed in this medication guide.
Do not receive Aclasta without telling your doctor if you have had an allergic reaction to zoledronic acid or similar medicine such as alendronate (Fosamax), etidronate (Didronel), ibandronate (Boniva), pamidronate (Aredia), risedronate (Actonel), or tiludronate (Skelid). Do not use Aclasta without telling your doctor if you are pregnant. It could cause harm to the unborn baby. Use an effective form of birth control, and tell your doctor if you become pregnant during treatment.
Your doctor may recommend you have a dental exam for preventive tooth and gum care before you start your treatment with Aclasta. This is especially important if you have cancer, if you are undergoing chemotherapy or using steroids, or if you have poor dental health.
Some people using medicines similar to Aclasta have developed bone loss in the jaw, also called osteonecrosis of the jaw. Symptoms of this condition may include jaw pain, swelling, numbness, loose teeth, gum infection, or slow healing after injury or surgery involving the gums. You may be more likely to develop osteonecrosis of the jaw if you have cancer or have been treated with chemotherapy, radiation, or steroids. Other conditions associated with osteonecrosis of the jaw include blood clotting disorders, anemia (low red blood cells), and pre-existing dental problems.
Avoid having any type of dental surgery while you are being treated with Aclasta. It may take longer than normal for you to recover.