Susceptibilities of clinical and laboratory isolates of Blastomyces dermatitidis to ketoconazole, itraconazole, and fluconazole

Stanley W. Chapman, P. David Rogers, Michael G. Rinaldi, Donna C. Sullivan

Research output: Contribution to journalComment/debatepeer-review

18 Scopus citations

Abstract

Eighteen isolates of Blastomyces dermatitidis were evaluated for their in vitro susceptibilities to ketoconazole, itraconazole, and fluconazole. The MIC ranges were 0.1 to 0.4 μg/ml for ketoconazole, ≤0.018 to 0.07 μg/ml for itraconazole, and 2.5 to 4.0 μg/ml for fluconazole. The ranges for the minimal lethal concentrations were 0.2 to 0.8 μg/ml for ketoconazole, ≤0.018 to 0.07 μg/ml for itraconazole, and 10 to 40 μg/ml for fluconazole. Itraconazole was the most active agent against B. dermatitidis in vitro, while fluconazole was the least active. These results correlate with the clinical efficacies noted to date with doses of these agents used to treat blastomycosis.

Original languageEnglish (US)
Pages (from-to)978-980
Number of pages3
JournalAntimicrobial agents and chemotherapy
Volume42
Issue number4
DOIs
StatePublished - Apr 1998

ASJC Scopus subject areas

  • Pharmacology
  • Pharmacology (medical)
  • Infectious Diseases

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