Emamectin Benzoate (MK-244) works as a chloride channel activator by binding gamma aminobutyric acid (GABA) receptor and glutamate-gated chloride channels disrupting nerve signals within arthropods. IC50 & Target: GABA Receptor In Vitro: Emamectin Benzoate stimulates the release of GABA from the synapses between nerve cells and while additionally increasing GABA's affinity for its receptor on the post-junction membrane of muscle cells in insects and arthropods.