Table 2.: Peptide antagonists of glucagon receptors.

	Dosage	Mode of Delivery	Efficacy	References
Bicyclic 19-residue peptide BI-32169	320-440 nM	Subcutaneous (s.c.) or intravenous (i.v.)	Investigations still in the experimental phase.	[42, 43]
Des-His(1)-[Glu(9)]-glucagon amide	10 µg	Intravenously (i.v.)	Single dose blocks up to 40-80% of endo- as well as exogenous glucagon, including free as well as hepatocyte-bound.	[39,40, 43-45]