 It is being investigated as a possible treatment for reperfusion injury and stroke, hearing loss and tinnitus, and bipolar disorder.Additionally, ebselen may be effective against "Clostridium difficile" infections and has been shown to have antifungal activity "Aspergillus fumigatus".Ebselen is a potent scavenger of hydrogen peroxide as well as hydroperoxides including membrane bound phospholipid and cholesterylester hydroperoxides.