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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 

Pharmacokinetics of azithromycin in trachoma patients: serum and tear levels.

OBJECTIVE: To determine the effectiveness of single-dose oral azithromycin in the treatment of Chlamydia trachomatis through monitoring of tear and serum levels. DESIGN: Nonrandomized, clinical trial. PARTICIPANTS: Fourteen school-age children with active trachoma (one failed to complete the study). INTERVENTION: A single dose of azithromycin (20 mg/kg) was administered orally to 14 patients, and tear and serum levels were determined with high-performance liquid chromatography at 12, 24, 48, 72, 96, 120, and 144 hours after administration. MAIN OUTCOME MEASURES: Azithromycin levels in tears and serum. RESULTS: Peak levels of 1.53 microg/ml (standard deviation [SD] +/- 0.94) and 0.15 microg/ml (SD +/- 0.04) were obtained at 12 hours in both tears and serum, gradually decreasing over 144 hours. All patients were disease-free by 6 months. CONCLUSIONS: Levels of azithromycin in patients with trachoma were found to be within minimum inhibitory concentration range for Chlamydia trachomatis (0.03-0.25 microg/ml) throughout the monitored period of 6 days.[1]

References

  1. Pharmacokinetics of azithromycin in trachoma patients: serum and tear levels. Karcioglu, Z.A., El-Yazigi, A., Jabak, M.H., Choudhury, A.H., Ahmed, W.S. Ophthalmology (1998) [Pubmed]
 
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