Fluphenazine dihydrochloride (146-56-5) is a small-molecule antagonist targeting dopamine D1 and D2 receptors It is designed to inhibit dopaminergic signaling pathways thereby regulating neurochemical transmission involved in neuronal function Fluphenazine dihydrochloride exerts its biological activity primarily through blockade of dopamine D1 and D2 receptors with a reported EC50 of approximately 1 24 M In in vitro studies Fluphenazine dihydrochloride demonstrates concentration-dependent inhibition of cell viability reduction of melanogenesis and modulation of oxidative stress in normal human melanocytes In vivo it attenuates mechanical allodynia in rat neuropathic pain models by decreasing abnormal neuronal discharge in sensory nerve fibers Based on these pharmacological properties Fluphenazine dihydrochloride holds research potential in chronic psychotic disorders such as schizophrenia and neuropathic pain models