bifuron corizium coryzium diafuron enterotoxon furall furaxon furaxone furazol furazolidine furazolidon furazolidona furazolidonum furazolum furazon furidon furovag furoxaerosolpowder furoxal furoxane furoxon furoxone furoxoneliquid furoxoneswinemix furozolidine giardil giarlam medaron neftin nicolen nifulidone nifuran nifurazolidone nifurazolidonum nitrofurazolidone nitrofurazolidonum nitrofuroxon optazol ortazol puradin roptazol sclaventerol tikofuran topazone trichofuron tricofuron tricoron trifurox viofuragyn