Cefpodoxime is a third-generation semi-synthetic cephalosporin with activity against a wide range of Gram-positive and Gram-negative bacteria. It remains stable in the presence of beta-lactamase enzymes. Cefpodoxime is particularly effective against methicillin-sensitive Staphylococci, Streptococcus pneumoniae, Haemophilus influenzae, Neisseria species, and Moraxella catarrhalis.
Clavulanic acid is a naturally occurring beta-lactamase inhibitor produced by Streptomyces clavuligerus. It binds to beta-lactamase enzymes and inactivates them, thereby protecting cefpodoxime from degradation and enhancing its antibacterial efficacy.