Document Detail


Famciclovir-induced leukocytoclastic vasculitis.
MedLine Citation:
PMID:  18628445     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: To report a case of famciclovir-induced leukocytoclastic vasculitis (LCV). CASE SUMMARY: A 67-year-old white female presented to the hospital for evaluation of large, bilateral palpable purpura; coalescing ulcers with central eschars; and small, red violaceous papules on her legs and groin. Approximately 2 months prior to this hospitalization, the woman was diagnosed with shingles of her left T1-T2 nerve distribution and was treated with famciclovir 500 mg 3 times daily, which was her first exposure to this medication. Her shingles resolved; however, on day 4 of treatment, she began to notice red spots on both of her legs that began to progressively blister and increase in size. She discontinued famciclovir at that time. The rash persisted and spread to her abdomen, groin, legs, feet, and toes. She underwent punch biopsy that revealed LCV. Workup was negative for antinuclear antibody, rheumatoid factor, hepatitis B and C virus, perinuclear-staining antineutrophil cytoplasmic antibodies, cytoplasmic-staining antineutrophil cytoplasmic antibodies, antibodies to extractable nuclear antigens, proteinase 3, and myeloperoxidase. The patient improved with daily oral steroids and local wound care. DISCUSSION: LCV has been reported only once before in the English literature as of January 2008. The most common cause of LCV is medication use, but it is a diagnosis of exclusion. It is hypothesized that drugs act as haptens, which cause an immune response. An objective causality assessment using the Naranjo probability scale suggested that famciclovir was the probable cause of LCV in this patient. CONCLUSIONS: Healthcare professionals should be aware of the possible development of famciclovir-induced LCV.
Authors:
Charles C Te; Vu Le; Mark Allee
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Publication Detail:
Type:  Case Reports; Journal Article     Date:  2008-07-15
Journal Detail:
Title:  The Annals of pharmacotherapy     Volume:  42     ISSN:  1542-6270     ISO Abbreviation:  Ann Pharmacother     Publication Date:  2008 Sep 
Date Detail:
Created Date:  2008-08-15     Completed Date:  2008-10-27     Revised Date:  2009-11-19    
Medline Journal Info:
Nlm Unique ID:  9203131     Medline TA:  Ann Pharmacother     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1323-6     Citation Subset:  IM    
Affiliation:
Department of Internal Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73190, USA. charles-te@ouhsc.edu
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MeSH Terms
Descriptor/Qualifier:
2-Aminopurine / adverse effects,  analogs & derivatives*,  therapeutic use
Aged
Anti-Inflammatory Agents / therapeutic use
Antiviral Agents / adverse effects*,  therapeutic use
Female
Herpes Zoster / drug therapy
Humans
Prednisone / therapeutic use
Vasculitis, Leukocytoclastic, Cutaneous / chemically induced*
Chemical
Reg. No./Substance:
0/Anti-Inflammatory Agents; 0/Antiviral Agents; 104227-87-4/famciclovir; 452-06-2/2-Aminopurine; 53-03-2/Prednisone

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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