Comparison of Efficacies of Oral Levofloxacin and Oral Ciprofloxacin in a Rabbit Model of a Staphylococcal Abscess
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Oral levofloxacin was compared to oral ciprofloxacin in a Staphylococcus aureus subcutaneous abscess model in rabbits. Rabbits were surgically prepared with subcutaneous wiffle balls (43 mm in diameter) and allowed to recover for 4 to 6 weeks. Rabbits were infected by direct injection into the capsule with S. aureus ATCC 29213 (5 x 10(5) CFU) and were allowed to remain infected for 8 days before the initiation of anti-infective treatment. Efficacy was determined by assessing the bacterial load within the capsule over a 10-day treatment period. In single-dose pharmacokinetic studies in infected rabbits, similar area under the concentration-time curve/MIC ratios were obtained in the plasma and abscess fluid for levofloxacin at 45 mg/kg of body weight and ciprofloxacin at 200 mg/kg of body weight. Similar efficacies were seen with levofloxacin at 45 mg/kg/day and ciprofloxacin 400 mg/kg/day by day 10. In this model, levofloxacin was significantly more efficacious than ciprofloxacin (P < 0.01).
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Jordan R, Fan X, Salazar G, Zhang N, An Z Oncoimmunology. 2018; 7(9):e1480300.
PMID: 30228951 PMC: 6140550. DOI: 10.1080/2162402X.2018.1480300.
Pan A, Mei Q, Ye Y, Li H, Liu B, Li J J Antibiot (Tokyo). 2016; 70(2):166-173.
PMID: 27756910 DOI: 10.1038/ja.2016.124.
Xiong M, Wu X, Ye X, Zhang L, Zeng S, Huang Z Front Microbiol. 2016; 7:874.
PMID: 27375594 PMC: 4896111. DOI: 10.3389/fmicb.2016.00874.
Mei Q, Ye Y, Zhu Y, Cheng J, Chang X, Liu Y Eur J Clin Microbiol Infect Dis. 2014; 34(4):737-44.
PMID: 25424036 DOI: 10.1007/s10096-014-2285-6.
Liu M, Blinn C, McLeod S, Wiseman J, Newman J, Fisher S PLoS One. 2014; 9(3):e90382.
PMID: 24595353 PMC: 3942414. DOI: 10.1371/journal.pone.0090382.