title: Hazards of ketoconazole therapy in testotoxicosis.
abstract: An eight-year-old boy with Leydig cell hyperplasia (testotoxicosis) was admitted with a three-day history of rash, vomiting and diarrhoea, followed by acute onset of breathlessness and confusion. He was shocked, with liver cell and renal failure, erythematous rash and severe interstitial pneumonitis. He had been treated with ketoconazole for four years prior to admission, receiving 1200mg daily during the preceding year. Cessation of ketoconazole therapy was associated with full clinical recovery but relapse of testotoxicosis. Ketoconazole was reintroduced cautiously at a lower dose, with no ill-effect, and reasonable control of testotoxicosis. We conclude that this boy's illness, including the interstitial pneumonitis, represented a reaction to ketoconazole which was dose-related rather than idiosyncratic.
authors: Department of Child Health, Glasgow University, UK.
authors: D
authors: D
authors: Babovic-Vuksanovic
authors: M D
authors: MD
authors: Donaldson
authors: N A
authors: NA
authors: Gibson
authors: A M
authors: AM
authors: Wallace
mesh_terms: D002648:Child; D004305:Dose-Response Relationship, Drug; D004342:Drug Hypersensitivity / Q000209:etiology*; D006801:Humans; D006965:Hyperplasia; D007654:Ketoconazole / Q000009:adverse effects* / Q000627:therapeutic use; D007985:Leydig Cells / Q000473:pathology; D008297:Male; D011629:Puberty, Precocious / Q000188:drug therapy* / Q000473:pathology
chemical_list: D007654:Ketoconazole