“Pretreatment with the … inhibitors, trifluoperazine (40 mumoles/kg), chlorpromazine (40 mumoles/kg) or …-7 (140 mumoles/kg) greatly attenuated the CD2+ -induced increase in both parameters, whereas pretreatment with chlorpromazine sulfoxide (140 mumoles/kg), pentobarbital (140 mumoles/kg), verapamil (80 mumoles/kg) or ethylenediaminetetraacetate (140 mumoles/kg) did not.”