Biltricide is used to treat: diseases caused by flukes (trematodes), such as various species of blood flukes (e.g. Schistosoma haematobium, S. mansoni, S. intercalatum, S. japonicum, S. mekongi), liver flukes (e.g. Clonorchis sinensis, Opisthorchis viverrini) and lung flukes (e.g. Paragonimus westermani and other species).