Fluphenazine (dihydrochloride) (Standard) is the analytical standard of Fluphenazine (dihydrochloride). This product is intended for research and analytical applications. Fluphenazine dihydrochloride is a potent, orally active phenothiazine-based dopamine receptor antagonist. Fluphenazine dihydrochloride blocks neuronal voltage-gated sodium channels. Fluphenazine dihydrochloride acts primarily through antagonism of postsynaptic dopamine-2 receptors in mesolimbic, nigrostriatal, and tuberoinfundibular neural pathways. Fluphenazine dihydrochloride can antagonize Methylphenidate-induced stereotyped gnawing and inhibit climbing behaviour in mice. Fluphenazine dihydrochloride can be used for researching psychosis and painful peripheral neuropathy associated with diabetes and has potential to inhibit SARS-CoV-2^{[1][2][3][4][6]}.