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