Effect of fluvastatin and pravastatin, HMG-CoA reductase inhibitors, on fluconazole activity against Candida albicans.
Synergy between fluvastatin, at clinically unachievable concentrations, and fluconazole against Candida albicans has been reported. The purpose of the present study was to evaluate the in-vitro activity of fluconazole alone and in combination with clinically achievable concentrations of pravastatin and fluvastatin against C. albicans. In-vitro susceptibility and synergy testing were performed against clinical isolates of C. albicans with fluconazole, pravastatin and fluvastatin. Both checkerboard method and time-kill studies were performed. MICs for fluconazole ranged from 0.5 (susceptible) to >256 mg/L (resistant) at 24 h. All isolates had MICs >2 mg/L for both statins. No synergy or antagonism was observed with fluconazole in combination with either agent against any isolate of C. albicans by the checkerboard assay or time-kill studies. Clinically achievable concentrations of pravastatin and fluvastatin did not affect the in-vitro activity of fluconazole against C. albicans.
Nash
James D
JD
College of Pharmacy, University of Texas at Austin, Departments of Pharmacology and Medicine, University of Texas Health Science Center at San Antonio and South Texas Veterans Health Care System San Antonio, TX, USA.
Burgess
David S
DS
College of Pharmacy, University of Texas at Austin, Departments of Pharmacology and Medicine, University of Texas Health Science Center at San Antonio and South Texas Veterans Health Care System San Antonio, TX, USA.
Talbert
Robert L
RL
College of Pharmacy, University of Texas at Austin, Departments of Pharmacology and Medicine, University of Texas Health Science Center at San Antonio and South Texas Veterans Health Care System San Antonio, TX, USA.
D000935:Antifungal Agents / Q000494:pharmacology*; D002176:Candida albicans / Q000187:drug effects*; D004357:Drug Synergism; D005229:Fatty Acids, Monounsaturated / Q000494:pharmacology*; D015725:Fluconazole / Q000494:pharmacology*; D000077340:Fluvastatin; D019161:Hydroxymethylglutaryl-CoA Reductase Inhibitors / Q000494:pharmacology*; D007211:Indoles / Q000494:pharmacology*; D008826:Microbial Sensitivity Tests; D017035:Pravastatin / Q000494:pharmacology*
D000935:Antifungal Agents; D005229:Fatty Acids, Monounsaturated; D019161:Hydroxymethylglutaryl-CoA Reductase Inhibitors; D007211:Indoles; D000077340:Fluvastatin; D015725:Fluconazole; D017035:Pravastatin