Ibandronate Sodium Monohydrate inhibits bone resorption as a sodium salt and complexed with technetium Tc 99m for bone imaging. The monophosphonates are not active and the biphosphonates are used in disorders affecting the skeleton such as metastatic disease, asteoporosis and Paget's. Ibandronate Sodium Monohydrate is an inhibitor of FDPS.