Background: Combination therapy with amphotericin B (AmB) and Voriconazole are sometimes used due to reducing AmB-related adverse reactions and improving outcomes. However, there was no report whether AmB would affect the serum level of Voriconazole.
Case Presentation: A patient was in presumption of invasive fungal infection. Voriconazole and amphotericin B was combined for administration. The results showed that serum levels of Voriconazole were dramatically reduced when combined AmB, whereas went up when receiving Voriconazole alone.
Conclusion: AmB might decrease the level of Voriconazole. Such a combination of AmB and Voriconazole cannot be considered appropriate until more data are available.
Keywords: amphotericin B, voriconazole, fungal infection, drug interaction