“Under nondepolarizing conditions, ebselen (400 μM) increased Ca2+ influx; diphenyl ditelluride (40–400 μM) decreased Ca2+ in all concentrations tested; … decreased Ca2+ influx at 40 and 100 μM, but had no effect at 400 μM. In the presence of KCl …, ebselen and diphenyl ditelluride decreased … in a linear fashion.”