Tobramycin and carbenicillin compared with gentamicin and carbenicillin in the treatment of infection with Pseudomonas aeruginosa in adult patients with cystic fibrosis.

Treatment with gentamicin or tobramycin given intravenously with carbenicillin is compared in the treatment of bronchopulmonary infection in older patients with cystic fibrosis. All patients improved on both regimens and there was no observed difference in the two treatments. Pseudomonas aeruginosa could still be isolated from the sputum 3 months after completion of treatment with both treatments. No toxic or allergic side-effects were noted.