Proksifan je ligand histaminskog H3 receptora, koji je „proteanski agonist“. On proizvodi različite efekte u opsegu od punog agonista do antagonista, do inverznog agonista u različitim tkivima, u zavisnosti od nivoa konstitutivne aktivnosti histaminskog H3 receptora. To mu daje kompleksan profil aktivnosti in vivo.[3][4][5][6][7][8][9]
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^Morisset, S.; Rouleau, A.; Ligneau, X.; Gbahou, F.; Tardivel-Lacombe, J.; Stark, H.; Schunack, W.; Ganellin, C. R.; Schwartz, J. C.; Arrang, J. M. (2000). „High constitutive activity of native H3 receptors regulates histamine neurons in brain”. Nature. 408 (6814): 860—864. PMID11130725. S2CID4391762. doi:10.1038/35048583.
^Baldi, E.; Bucherelli, C.; Schunack, W.; Cenni, G.; Blandina, P.; Passani, M. B. (2005). „The H3 receptor protean agonist proxyfan enhances the expression of fear memory in the rat”. Neuropharmacology. 48 (2): 246—251. PMID15695163. S2CID24218659. doi:10.1016/j.neuropharm.2004.09.009. hdl:2158/220558.
^Arrang, J. M.; Morisset, S.; Gbahou, F. (2007). „Constitutive activity of the histamine H3 receptor”. Trends in Pharmacological Sciences. 28 (7): 350—357. PMID17573125. doi:10.1016/j.tips.2007.05.002.