Journal
ADVANCES IN THERAPY
Volume 24, Issue 5, Pages 1098-1111Publisher
SPRINGER
DOI: 10.1007/BF02877716
Keywords
antibiotic; azithromycin; conjunctivitis; fluoroquinolone; gentamicin; moxifloxacin; polymyxin B/trimethoprim; tobramycin
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It is important to rapidly eradicate bacteria in patients with bacterial conjunctivitis in order to decrease disease transmission, shorten symptom duration, and minimize the emergence of resistant bacteria. This paper presents the results of kinetics of kill studies on 3 commonly isolated pathogens in bacterial conjunctivitis. A more rapid speed of kill with moxifloxacin compared with other nonfluoroquinolone antibiotics (tobramycin, gentamicin, polymyxin B/trimethoprim, or azithromycin) was observed in Staphylococcus aureus, Streptococcus pneumoniae, and Haemophilus influenzae infections. Moxifloxacin achieved a 99.9% kill at approximately 1 h for S aureus, 2 h for S pneumoniae, and 30 min for H influenzae. In comparison, other nonfluoroquinolone therapies took longer to achieve a bactericidal (3-log) kill and some demonstrated no change or an increase in bacterial growth. Based on these findings, it is concluded that moxifloxacin kills bacteria more rapidly than nonfluoroquinolone topical ocular antibiotics.
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