• Andries Gous, Jeffrey Lipman, Juan Scribante, Shephelia Tshukutsoane, Hubert Hon, Mary Pinder, Rudo Mathivha, Lia Verhoef, and Heino Stass.
• School of Pharmacy, University of Limpopo, P.O. Box 218, Medunsa 0204, South Africa.
• Int. J. Antimicrob. Agents. 2005 Jul 1; 26 (1): 50-5.

AbstractThis study aimed to investigate whether fluid shifts alter ciprofloxacin pharmacokinetics in critically ill patients over time. Patients > or = 18 years, with normal renal function, requiring intensive care treatment and parenteral antibiotics were enrolled. Group A (22 patients) included patients with documented intra-abdominal infections. Group B (18 patients) included patients with severe sepsis from other causes. All patients received intravenous ciprofloxacin 400 mg every 8 h infused over 60 min. Eight timed blood specimens were taken on days 0, 2 and 7. Ciprofloxacin plasma concentrations were determined using high performance liquid chromatography. There were no significant differences between the pharmacokinetics of the two groups or over time. Ciprofloxacin pharmacokinetics in critically ill patients do not change over time, and intra-abdominal sepsis does not alter ciprofloxacin pharmacokinetic parameters to a greater degree than sepsis from other causes in critically ill patients.

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