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  • Title: Leukocytoclastic vasculitis associated with clarithromycin.
    Author: Gavura SR, Nusinowitz S.
    Journal: Ann Pharmacother; 1998 May; 32(5):543-5. PubMed ID: 9606474.
    Abstract:
    OBJECTIVE: To report a possible case of leukocytoclastic vasculitis associated with clarithromycin therapy. CASE SUMMARY: An 83-year-old white woman was prescribed clarithromycin for pneumonia. Six days after her initial presentation, she developed lesions on her palms. Clarithromycin was discontinued at that time. The following day she developed purpuric eccymotic nonblanching lesions that primarily appeared on the lower extremities, buttocks, and abdomen. Colonoscopy revealed generalized erythema and edema of the bowel mucosa. Gastroscopy revealed duodenitis and gastritis, but no bleeding or ulceration. Skin biopsy of the lesions was compatible with leukocytoclastic vasculitis. Renal function was not affected, although hematuria was noted. All symptoms resolved after drug withdrawal and a short course of corticosteroids. DATA SOURCES: Searches were performed on MEDLINE, Embase, International Pharmaceutical Abstracts, and major adverse drug reaction databases to identify reports and articles discussing clarithromycin- and macrolide-induced leukocytoclastic vasculitis. DISCUSSION: Leukocytoclastic vasculitis is one category of drug hypersensitivity reactions characterized by distinctive patterns of perivascular inflammation. The case described here is consistent with the diagnosis of leukocytoclastic vasculitis, and is similar to the other single published case report associated with clarithromycin. CONCLUSIONS: Leukocytoclastic vasculitis induced by clarithromycin is a rare but serious potential adverse effect.
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