Biliary excretion of cefixime: assessment in patients provided with T-tube drainage.
AUTOR(ES)
Westphal, J F
RESUMO
The biliary excretion profile of cefixime was studied in 10 patients provided with T-tube drainage of the common bile duct after cholecystectomy. Following a single 200-mg oral dose, the peak concentration of cefixime in bile reached 56.9 +/- 70 mg/liter, approximately 20 times as high as the peak concentration in serum, 2.3 +/- 0.85 mg/liter. Cefixime levels in bile proved relatively sustained, since a concentration of 4.3 +/- 3.7 mg/liter was still found 20 h after dosing. The cumulative amount of cefixime recovered in the 24-h bile drainage averaged 10.0 +/- 12.3 mg, which is 5% of the administered dose and positions this beta-lactam antibiotic among the most highly bile-excreted cephalosporins. The presented results show that a single 200-mg oral dose of cefixime provided drug levels in bile consistently higher than the MICs for the most frequently recovered members of the family Enterobacteriaceae in biliary tract infections and maintained these levels for over 20 h after dosing. Accordingly, this cephalosporin deserves further clinical trials to assess its usefulness in both prophylaxis and treatment of biliary tract infections.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=187999Documentos Relacionados
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