 According to the British National Formulary (BNF), netilmicin has similar activity to gentamicin, but less ototoxicity in those needing treatment for longer than 10 days.Netilmicin is active against a number of gentamicin-resistant Gram-negative bacteria but is less active against "Pseudomonas aeruginosa than gentamicin or tobramycin.However, according to the below-mentioned studies, the above advantages are controversial