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. 2018 Sep 24;62(10):e01261-18.
doi: 10.1128/AAC.01261-18. Print 2018 Oct.

Biopharmaceutical Characterization of Nebulized Antimicrobial Agents in Rats: 6. Aminoglycosides

Affiliations

Biopharmaceutical Characterization of Nebulized Antimicrobial Agents in Rats: 6. Aminoglycosides

Sandrine Marchand et al. Antimicrob Agents Chemother. .

Abstract

Amikacin and gentamicin pharmacokinetic behaviors after nebulization were determined by comparing plasma and pulmonary epithelial lining fluid (ELF) concentrations in rats after intratracheal and intravenous administrations. ELF areas under concentration-time curve were 874 and 162 times higher after nebulization than after intravenous administration for amikacin and gentamicin, respectively. Even if both molecules appear to be good candidates for nebulization, these results demonstrate a much higher targeting advantage of nebulization for amikacin than for gentamicin.

Keywords: aminoglycosides; biopharmaceutics; nebulization.

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Figures

FIG 1
FIG 1
Predicted concentration-time profiles of AMK, GEN, and TOB in plasma (solid line) and ELF (dashed line) from simultaneous plasma and ELF pharmacokinetic modeling, after i.v. administration (left panel) and intratracheal nebulization (right panel) of GEN (8 mg · kg−1), AMK (30 mg · kg−1), and TOB (3 mg · kg−1). Closed and open symbols represent experimental mean ± SD concentrations in plasma and ELF, respectively. TOB data obtained previously were reanalyzed using the same model as for AMK and GEN (3). TA, targeting advantage of NEB, corresponding to AUCELF after NEB over AUCELF after i.v. corrected for doses.

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