Diclazuril is an anticoccidial drug used in major poultry species, such as broiler chickens, replacement pullets and turkeys, as well as in rabbits, lambs and minor edible bird species.
The chemical name of the compound is: 2,6-dichloro-a-(4-chlorophenyl)-4-(4,5-dihydro-3,5-dioxo-1,2,4-triazin-2(3H)-yl) benzeneacetonitrile.