For the treatment and control of species like gastro-intestinal roundworms, lungworms, liver fluke, eyeworms, warbles, mites and lice of cattle. It is generally administered with Ivermectin.Clorsulon is approved for use in the treatment of immature and adult forms of Fasciola hepatica (Liver fluke) in cattle. It is not effective against immature flukes less than 8 weeks old. It also has activity against Fasciola gigantica. Clorsulon is also not effective against the rumen fluke (Paramphistomum). Clorsulon is considered to be safe to use in pregnant or breeding animals.