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  • Title: Inhaled colistin for lower respiratory tract infections.
    Author: Antoniu SA, Cojocaru I.
    Journal: Expert Opin Drug Deliv; 2012 Mar; 9(3):333-42. PubMed ID: 22332963.
    Abstract:
    INTRODUCTION: Lower respiratory tract infections, due to Pseudomonas aeruginosa or Acinetobacter baumannii, are frequently encountered in patients with cystic fibrosis (CF) or in patients developing nosocomial pneumonias. Both of these conditions bear a high mortality risk and aggressive antibiotic therapy is necessary. Inhaled antibiotics might represent an effective therapeutic approach for these diseases as it has demonstrated good bactericidal efficacy and safety in both preclinical and clinical studies. This colistin formulation might be useful particularly in patients with respiratory tract infections due to multidrug-resistant Gram-negative bacteria. Its main advantages are a better safety profile with a minimal or absent risk of nephrotoxicity. AREAS COVERED: This paper discusses the available systemic formulations of colistin, with pharmacokinetic and safety profiles, followed by an overview of inhaled antibiotics in lower respiratory tract infections. EXPERT OPINION: Inhaled colistin should be used selectively as monotherapy in chronic infections with P. aeruginosa in CF patients, whereas in patients with hospital/ventilator-acquired pneumonia (HAP/VAP), it should be used in a combined regimen with systemic antibiotics.
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