Nifuroxazide (INN) is an oral nitrofuranantibiotic, patented since 1966 and used to treat colitis and diarrhea in humans and non-humans. It is sold under the brand names Ambatrol, Antinal, Bacifurane, Diafuryl (France), Diax (Egypt), Nifrozid, Ercefuryl (Romania, Czech Republic), Erfuzide (Thailand), Endiex (Slovakia), Nifuroksazyd (Poland), Pérabacticel (France), Pentofuryl (Germany), Topron (Latin America), Antinal (Egypt), Apazid (Morocco) and Septidiaryl. It is sold in capsule form and also as a suspension. The pharmaceutical group GlaxoSmithKline plc (Previously known as SmithKline Beecham) claims that nifuroxazide is highly effective and the consumers' group Healthy Skepticism says that GlaxoSmithKline's claims have no scientific support.
Maurice Claude Ernest Carron patented the drug in the United States in 1966. Subsequent patents issued to Germano Cagliero of Marxer S.p.A describe the use of nifuroxazide as an antibiotic used to treat livestock.