[Influence of cefaclor on experimental pyelonephritis (author's transl)].

A comparative study on the antibiotic activity of cefaclor and cephradine was performed in an infection and therapy model of acute pyelonephritis in the rat. Pathogens were Escherichia coli and Klebsiella pneumoniae. The antibiotics, which were administered orally, both had a pronounced effect in comparison to the untreated control group. Cefaclor was superior to cephradine in infections caused by K. pneumoniae.