Korean J Dermatol.  2007 Jul;45(7):714-719.

Three Cases of Allopurinol-induced DRESS Syndrome

Affiliations
  • 1Department of Dermatology, Chungnam National University School of Medicine, Daejon, Korea. jhoon@cnu.ac.kr

Abstract

Allopurinol (4-hydroxypyrazolo-[3,4-d]pyrimidine) is an effective and widely used xanthine oxidase inhibitor administered in the treatment of hyperuricemic states such as gout. Allopurinol-induced DRESS (Drug rash with eosinophilia and systemic symptoms) syndrome is characterized by hematologic abnormalities, especially eosinophilia and mononucleosis-like atypical lymphocytosis, skin rash, fever, lymph node enlargement and single or multiple organ involvement, which starts within 8 weeks after the initiation of therapy. We report three cases of allopurinol-induced DRESS syndrome who developed erythematous skin eruption six weeks, nine weeks and seven weeks, respectively, after allopurinol therapy. The clinical, laboratory and histologic findings of these patients were compatible with allopurinol-induced DRESS syndrome.

Keyword

Allopurinol; DRESS syndrome

MeSH Terms

Allopurinol
Drug Hypersensitivity Syndrome*
Eosinophilia
Exanthema
Fever
Gout
Humans
Lymph Nodes
Lymphocytosis
Skin
Xanthine Oxidase
Allopurinol
Xanthine Oxidase
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