Flupirtine maleate (CAS 75507-68-5) is a non-opioid analgesic compound characterized by its modulatory effects on neuronal excitability It acts primarily by opening neuronal potassium channels leading to membrane stabilization and reduced excitatory neurotransmission Additionally flupirtine exerts indirect antagonism of N-methyl-D-aspartate (NMDA) receptors which contributes to its analgesic and muscle relaxant effects Due to this dual mechanism flupirtine maleate is utilized in research focusing on pain modulation neuroprotection and the investigation of NMDA receptor-mediated pathways