Nifuroxazide (INN) is an oral nitrofuran antibiotic, patented since 1966[1] and used to treat colitis and diarrhea in humans and non-humans.

[2] It is sold under the brand names Ambatrol, Antinal, Bacifurane, Diafuryl (Turkey), Benol (Pakistan), Pérabacticel (France), Antinal, Diax (Egypt), Nifrozid, Ercefuryl (Romania, Czech Republic, Russia), Erfuzide (Thailand), Endiex (Slovakia), Enterofuryl (Bosnia and Herzegovina, Montenegro, Russia), Pentofuryl (Germany), Nifuroksazyd Hasco, Nifuroksazyd Polpharma (Poland), Topron, Enterovid (Latin America), Eskapar (Mexico), Enterocolin, Terracolin (Bolivia), Apazid (Morocco), Nifroxid (Tunisia), Nifural (Indonesia) and Septidiaryl.

[1] Subsequent patents issued to Germano Cagliero of Marxer S.p.A. describe the use of nifuroxazide as an antibiotic used to treat livestock.

[2] In 1997, in an Ivory Coast promotional leaflet, GlaxoSmithKline claimed that nifuroxazide (under the brand name "Ambatrol") is an anti-dehydration treatment, "neutralise[s] microbacterials" in diarrhoea, and has "a spectrum which covers most enteropathogenic microbacterials, Shigella, Escherichia coli, Salmonella, Staphylococci, Klebsiella, Yersinia".

[3] The international non-profit organization Healthy Skepticism, at the time using their former name, Medical Lobby for Appropriate Marketing (MaLAM), disagreed, stating "We have not found any scientific evidence to support these claims.