CYM2503 is a putative GalR2-positive allosteric modulator. CYM2503 increases the latency to first electrographic seizure and decreases the total time in seizure. CYM2503 also attenuates electroshock-induced seizures in mice. Galanin receptors type 1 (GalR1) and/or type 2 (GalR2) represent unique pharmacological targets for the research of seizures and epilepsy[1].