Two Cases of Allopurinol Hypersensitivity Syndrome in Patients Receiving Thiazide Therapy due to Hypertension / 대한피부과학회지

ABSTRACT

Allopurinol hypersensitiviy syndrome (AHS) is a rare immunologic response to allopurinol, characterized by multiple findings such as skin rash, fever, hepatic dysfunction, decreased renal function, leukocytosis and eosinophilia. The risk developing AHS tends to increase in patients receiving thiazide therapy or in those who have a pre-existing renal disease. We report two cases of AHS in patients who were taking thiazide medication due to hypertension and underlying renal disease. They developed an erythematous skin rash, fever, renal dysfunction, and eosinophilia after allopurionol therapy.