Neomycin + Bacitracin is an aminoglyoside with antimicrobial properties. It is similar to action as gentamicin, and binds to the 30S subunits of the bacterial ribosome, hindering protein synthesis and upsetting DNA synthesis. It is active against numerous gram-negative aerobes and against a few strains of staphylococci. Bacitracin inhibits bacterial cell well synthesis ad acts against numerous gram-positive microorganisms like staphylococci, streptococci, corynebacteria and clostridia, as well as some gram-negative species like Neisseria and Haemophilus influenzae.