CyproheptadineHistamine H1 AntagonistsHistamine H1 Antagonists, Non-SedatingCetirizineLoratadineDiphenhydramineHistamine AntagonistsSerotonin AntagonistsChlorpheniramineTerfenadineUrticariaAstemizoleKetotifenMethysergideNelson SyndromeAppetite StimulantsTriprolidineAnti-Allergic AgentsButyrophenonesDibenzoxepinsSolanaceous AlkaloidsSerotoninPizotylineReceptors, SerotoninFenclonineMetergolineQuipazine5-HydroxytryptophanDoxepinRhinitis, Allergic, PerennialKetanserinPimozide