Combined action of amphotericin В and 5-fluorocytosine on pathogenic yeasts susceptible to either drug alone

William H. Beggs, Fred A. Andrews, George A. Sarosi

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

Amphotericin B (AMB)-5-fluorocytosine (5-FC) synergism has generally been observed in yeasts displaying 5-FC resistance. The present study was designed to assess activity of these drugs on yeasts showing susceptibility to 5-FC as well as AMB. Selected strains were incubated in a synthetic liquid medium with the test agents and viability or 14C-5-FC uptake was determined. Combinations of AMB and 5-FC continued to be inhibitory during the period that cultures treated with either drug alone were recovering from transient inhibition. In this sense, AMB + 5-FC exerted greater antifungal activity than either drug alone. However, combined activity did not involve AMB stimulation of 5-FC uptake by the organism. Results were indicative of sequential drug action.

Original languageEnglish (US)
Pages (from-to)247-251
Number of pages5
JournalChemotherapy
Volume27
Issue number4
DOIs
StatePublished - Jan 1 1981

Keywords

  • 5-FIuorocytosine
  • Amphotericin B-5-fIuorocytosine combinations
  • Amphotericin В
  • Candida albicans
  • Candida parapsilosis
  • Candida tropicalis
  • Torulopsis glahrata

Fingerprint Dive into the research topics of 'Combined action of amphotericin В and 5-fluorocytosine on pathogenic yeasts susceptible to either drug alone'. Together they form a unique fingerprint.

Cite this