Tobramycin, an aminoglycoside antibiotic, has actions similar to that of gentamicin and is active against Staphylococci, Streptococci, Pseudomonas aeruginosa, Escherichia coli, Klebsiella pneumoniae, Enterobacter aerogenes, Proteus mirabilis, Morganella morganii, most Proteus vulgaris strains, Haemophilus influenzae and H. aegyptius, Moraxella lacunata, Acinetobacter calcoaceticus and some Neisseria species. Dexamethasone, a synthetic fluorinated corticosteroid, has mainly glucocorticoid activity and suppresses inflammatory response.