Medical Dictionary


noun cla·rith·ro·my·cin \klə-ˌrith-rə-ˈmīs-ən\

Medical Definition of clarithromycin

  1. :  a semisynthetic macrolide antibiotic C38H69NO13 used especially in the treatment of various mild to moderate bacterial infections Macrolides are recommended as first-line therapy for adults in the United States and Canada with community-acquired pneumonia. Newer macrolides (eg, azithromycin, clarithromycin) are popular because of convenient dosing schedules and fewer adverse effects.—Terri B. Hyde et al., The Journal of the American Medical Association, 17 Oct. 2001 Clarithromycin is marketed under the trademark Biaxin.

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