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The Influence of Uremia on the Accessibility of Phosphomycin into Interstitial Tissue Fluid

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Specialty Pharmacology
Date 1983 Jan 1
PMID 6628521
Citations 7
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Abstract

The entry and persistence of phosphomycin in interstitial tissue fluid (ITF) were studied in 9 patients with normal renal function and 8 patients with varying degrees of renal impairment, all of whom received a single i.v. dose of 30 mg/kg. ITF was obtained from skin blisters produced by suction. The antibiotic followed a two-compartment open kinetic model. In patients with normal renal function, phosphomycin is incorporated rapidly into the ITF reaching a level of 60.4 micrograms/ml 60 min after administration. There was no statistically significant difference between the elimination rates from serum and ITF. The serum half-life of the slow disposition phase was 1.75 h in patients with normal renal function. There was a linear correlation between the elimination half-life of phosphomycin in serum and ITF in subjects with differing degrees of renal impairment.

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