In Vitro Activity and Fecal Concentration of Rifaximin after Oral Administration

Author:

Jiang Zhi-Dong1,Ke Shi2,Palazzini Ernesto3,Riopel Lise4,Dupont Herbert15

Affiliation:

1. Center for Infectious Disease, School of Public Health and Medical School, University of Texas—Houston,1

2. University of Texas M.D. Anderson Cancer Center,2 and

3. Alfa Wassermann, S.p.A. Bologna, Italy3; and

4. Salix Pharmaceuticals Inc., Palo Alto, California4

5. St. Luke's Episcopal Hospital and Baylor College of Medicine,5 Houston, Texas;

Abstract

ABSTRACT Rifaximin showed moderately high MICs (the MIC at which 90% of the isolates tested were inhibited = 50 μg/ml) for 145 bacterial enteropathogens from patients with traveler's diarrhea acquired in Mexico during the summers of 1997 and 1998. Rifaximin concentrations in stool the day after oral administration (800 mg daily for 3 days) were high (average, 7,961 μg/g), proving the value of the drug.

Publisher

American Society for Microbiology

Subject

Infectious Diseases,Pharmacology (medical),Pharmacology

Reference13 articles.

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2. Pharmacokinetic study of rifaximin after oral administration in healthy volunteers.;Descombe J. J.;Int. J. Clin. Pharmacol. Res.,1994

3. Treatment of travelers' diarrhea with trimethoprim/sulfamethoxazole and with trimethoprim alone.;DuPont H. L.;N. Engl. J. Med.,1982

4. Prevention and treatment of traveler's diarrhea.;DuPont H. L.;N. Engl. J. Med.,1993

5. Rifaximin: a nonabsorbed antimicrobial in the therapy of travelers' diarrhea.;DuPont H. L.;Digestion,1998

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