“…immediate treatment of urgent cases attended outside the surgery. we opposed the universal substitution of netilmicin (Netillin -Kirby-Warrick) for gentamicin and tobramycin although it is said to be less t0xic.l Bacterial endocarditis is an exception where netilmicin may sometimes be preferable to gentamicin,2 for example in the elderly o r those with impaired renal o r vestibular function 3. We reassess the claimed advantages of netilmicin in the light of recent data.ACTIVITY: Gram-negative organisms -Of over 4000 isolates of Gram-negative bacilli (from blood and urine) from 20 laboratories in Britain, resistance to gentamicin, tobramycin and netilmicin was of a similar order, about 2-3W.4…”