Ceftibuten is a third-generation cephalosporin antibiotic. It is an orally-administered agent, with 2 dosage forms, capsule or oral suspension. It is active against Haemophilus influenzae, Moraxella catarrhalis, Escherichia coli (K. pneumoniae, K. oxytoca), Proteus vulgaris, P. mirabils, P. providence, Salmonella sp., Shigella sp., Enterobacter sp. and Streptococcus sp. Ceftibuten is used to treat acute bacterial exacerbations of chronic bronchitis (ABECB), acute bacterial otitis media, pharyngitis, and tonsilitis. It is also indicated for pneumonia, infections of the urinary tract, enteritis and gastroenteritis. In studies made in 3,000 patients ceftibuten was well tolerated. Most frequent reactions were gastrointestinal and nauseas. Ceftibuten is available as capsules containing 400 mg, and a powder for oral suspension containing 180 mg per 5 ml.