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Azithromycin and Clarithromycin Overview and Comparison With Erythromycin

Published online by Cambridge University Press:  21 June 2016

W. Michael Scheld
Affiliation:
Department of Internal Medicine (Infectious Diseases), The Medical College of Annsylvania, Philadelphia, Pennsylvania
Marc S. Whitman
Affiliation:
Department of Internal Medicine (Infectious Diseases), The Medical College of Annsylvania, Philadelphia, Pennsylvania
Allan R. Tunkel*
Affiliation:
Department of Internal Medicine (Infectious Diseases), The Medical College of Annsylvania, Philadelphia, Pennsylvania
*
Division of Infectious Diseases, Department of Medicine, The Medical College of Pennsylvania, 3300 Henry Avenue, Philadephia, PA 19129

Extract

Macrolides currently account for 10% to 15% of the worldwide oral antibiotic market.' Erythromycin, the first macrolide antibiotic, was discovered in 1952 from a strain of Streptomyces erythreus obtained from soil samples in the Phillipines. Originally, erythromycin was marketed as an alternative to penicillin because of its activity against gram-positive organisms such as staphylococci, pneumococci, and streptococci. Subsequently, its clinical use broadened to include species of Mycoplasma, Legionella, Campylobacter, and Chlamydia. Although several other macrolides have been marketed in countries other than the United States, they have failed to achieve erythromycin's widespread use. Unfortunately, erythromycin suffers from several drawbacks, including gastrointestinal side effects, a short serum elimination half-life, and only borderline in vitro activity against common gram-negative respiratory pathogens such as Haemophilus influenzae.

Type
Clinical Pharmacology of Antibiotics
Copyright
Copyright © The Society for Healthcare Epidemiology of America 1992

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