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Lomefloxacin pharmacokinetics in subjects with normal and impaired renal function.

Authors
Type
Published Article
Journal
Antimicrobial agents and chemotherapy
Publication Date
Volume
34
Issue
1
Pages
17–20
Identifiers
PMID: 2327756
Source
Medline

Abstract

Lomefloxacin pharmacokinetics were investigated in 6 normal subjects and 24 uremic patients after a single oral dose of 400 mg. In subjects with normal renal function, the peak level in plasma averaged 3.5 +/- 0.9 micrograms/ml (mean +/- standard deviation) and was obtained at 1.3 +/- 0.9 h. The absorption rate constant was 3.8 +/- 1.6 h-1. The terminal half-life was 7.77 +/- 0.95 h. The apparent volume of distribution was 2.54 +/- 0.66 liters/kg. Total body and renal clearances were 259 +/- 83 and 200 +/- 55 ml/min per 1.73 m2, respectively. The percentage of the dose recovered unchanged in 48-h urine was 80.6 +/- 2.8. In uremic patients, the terminal half-life increased in relation to the degree of renal failure: from 8 h in normal subjects to 38 h in severely uremic patients (glomerular filtration rate, less than 10 ml/min). Renal insufficiency did not significantly modify the peak level in plasma, the time to peak, the apparent volume of distribution, or the nonrenal clearance of lomefloxacin. The dialysis clearance of lomefloxacin was 54 +/- 13 ml/min. Linear relationships were found between lomefloxacin pharmacokinetic parameters and glomerular filtration rate data. Dosage adjustments are necessary in uremic patients.

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