decrease serum concentration
prompt:molecule-molecule interaction [SEP] smiles:[K+].[K+].[K+].[K+].[K+].[Bi+3].[O-]C(=O)CC([O-])(CC([O-])=O)C([O-])=O.[O-]C(=O)CC([O-])(CC([O-])=O)C([O-])=O.O.O.[98Tc+4].[O-]P([O-])(=O)CP([O-])([O-])=O
wspaced:decrease serum concentration