Antagonists of alpha4 integrin/alpha4 integrin ligand adhesion, which inhibitthe biological effects of such adhesion are described and methods for theiruse are detailed. Such antagonists are useful in suppressing bone destructionassociated with multiple myeloma. The homing of multiple myeloma cells to bonemarrow and their alpha4 integrin-dependent release of bone-resorbing factors,resulting in bone destruction in patients with multiple myeloma, is inhibited.