decrease serum concentration
prompt:molecule-molecule interaction [SEP] smiles:[Ca++].OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C(O)C([O-])=O.OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C(O)C([O-])=O.O.O.[98Tc+4].[O-]P([O-])(=O)CP([O-])([O-])=O
wspaced:decrease serum concentration