Cefpodoxime proxetil is the 1-[(isopropoxycarbonyl)oxy]ethyl (proxetil) ester prodrug of cefpodoxime. After swallowing, hydrolysis of the ester group occurs in the intestinal epithelium, to release active cefpodoxime in the bloodstream. It is used to treat acute otitis media, pharyngitis, and sinusitis. It has a role as an antibacterial drug and a prodrug. It is a cephalosporin, a carboxylic ester and a carboxylic acid. It is functionally related to a cefpodoxime and a 4-{((R)-2-Carboxy-3-methoxymethyl-8-oxo-5-thia-1-aza-bicyclo[4.2.0]oct-2-en-7-ylcarbamoyl)-[(Z)-methoxyimino]-methyl}-thiazol-2-yl-ammonium.