Trans-epithelial intestinal elimination of moxifloxacin in rabbits

Albert Musafija, Jacob Ramon, Yuri Shtelman, Gila Yoseph, Bina Rubinovitz, Shlomo Segev, Ethan Rubinstein

Research output: Contribution to journalArticlepeer-review

Abstract

The intestinal trans-epithelial elimination of moxifloxacin was measured in the jejunum, ileum, caecum and in the bile in a rabbit model. Over a 120 min period following a single parenteral administration of moxifloxacin 15 mg/kg, peak serum concentration was 3.1 (± 1.1) mg/L. The elimination constants were: 0.019 (± 0.017) μg/cm2/min, 0.011 (± 0.014) μg/cm2/min and 0.002 (± 0.002) μg/cm2/min in the jejunum, ileum and caecum, respectively. Per loop, over 120 min, the respective eliminated quantities were: 9.59 (± 9.37) μg, 8.26 (± 6.74) μg and 1.92 (± 1.86) μg. Biliary moxifloxacin concentrations varied between 1.30 and 5.16 mg/L and exceeded serum levels from 45 min onwards. Intestinal concentrations paralleled serum moxifloxacin levels. Altogether, approximately 4.5% of the moxifloxacin dose was eliminated trans-epithelially in the digestive tract over the 120 min experimental period.

Original languageEnglish
Pages (from-to)803-805
Number of pages3
JournalJournal of Antimicrobial Chemotherapy
Volume45
Issue number6
DOIs
StatePublished - 2000
Externally publishedYes

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