Abstract
The aim of this study was to evaluate the susceptibility of 20 clinical isolates of Fusarium spp. to classic antifungals [amphotericin B (AmB), itraconazole (ITR), voriconazole (VRC) and caspofungin (CAS)] and to non-antifungal agents [amiodarone (AMD), doxycycline (DOX) and moxifloxacin (MFX)] by the broth microdilution method. Combinations between these antifungal and non-antifungal agents were also evaluated to determine the fractional inhibitory concentration indices using the chequerboard technique. Synergistic interactions were observed for the following combinations (% synergism): AMD + VRC, 80%; MFX + AmB, 75%; AMD + AmB, 65%; DOX + VRC, 60%; MFX + VRC, 55%; DOX + AmB, 50%; and AMD + CAS, 30%. Synergism was not observed for associations with ITR. Antagonism was not seen in any combination. These findings suggest that the combinations of AMD, DOX or MFX with AmB or VRC to have potential for future in vivo investigations.
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