Use in pregnancy: There are no adequate and well-controlled studies in pregnant women. Clarithromycin should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus. Clarithromycin should not be used in pregnant women except in clinical circumstances where no alternative therapy is appropriate.
Use in lactation: It is not known whether clarithromycin is excreted in human milk. Because many drugs are excreted in human milk, caution should be exercised when clarithromycin is administered to a nursing woman.