Galanin Receptor Ligand M35 has a dual effect on the galanin mediated inhibition of Forskolin stimulated cyclic AMP production in Rin m 5F cells. Co-applied with galanin (10 nM), Galanin Receptor Ligand M35 at low concentrations (1 nM) is able to reverse the inhibitory effect of galanin. But when present at higher concentrations (15 and 30 nM), Galanin Receptor Ligand M35 acts as a galanin receptor agonist, inhibiting the forskolin stimulated production of cAMP.