An anti-protozoal agent; prevents misfolding of prion protein (EC50 = 0.3 μM), blocks voltage-dependent sodium channels (IC50 = 3.3 μM), inhibits aldehyde oxidase (IC50 = 3.3 μM), antagonizes the riboflavin-binding protein (Ki = 6.7 μM), inhibits P-glycoprotein (EC50 = 14.4 μM).