title: Folic acid hypersensitivity and fever: a case report.
abstract: An apparent case of folic acid hypersensitivity and fever in a 36-year-old anephric man is reported. The patient first experienced pruritus when he received 1 mg of folic acid daily; the drug subsequently was discontinued. Three months later, after administration of 1 mg of folic acid daily, the patient became febrile and pruritic. Fever, generalized pain, chills, urticaria and pruritus persisted despite administration of acetaminophen/oxycodone tablets. Leukocytosis was not present. Challenge with a 10-mg/ml folic acid solution intradermally revealed the patient was hypersensitive to folic acid. Previous reports of folic acid-induced hypersensitivity are reviewed. Hypersensitivity to folic acid should be suspected if a patient experiences fever or rash, or both, while receiving folic acid and if neither symptom can be attributed to infection or other pathologic state.
mesh_terms: D000328:Adult; D004342:Drug Hypersensitivity / Q000150:complications*; D005334:Fever / Q000139:chemically induced*; D005492:Folic Acid / Q000009:adverse effects*; D006801:Humans; D007676:Kidney Failure, Chronic / Q000150:complications; D008297:Male
chemical_list: D005492:Folic Acid