Antifungals Flashcards
Antifungal Classes
Polyenes, Allylamine, Azoles, Echinocandins
Polyene Action
Makes pores in ergosterol cell membrane
Polyene Examples
Amphotericin B, Nystatin
Amb Spectrum
Systemic Fungal Infection (IV)
AmB SE’s
Allergies, Nephrotoxicity,
Nystatin Spectrum
Superficial Fungal Infection (topically)
Allylamine Action
Inhibit ergosterol synth
Allylamine Example
Terbinafine
Terbinafine Spectrum
Dermatophyte Infection (broad) (topical & oral)
Terbinafine SE’s
Hepatotoxicity
Azole Types
Imidazole + Triazole
Azole Action
Inhibit ergosterol synth
Azole SE’s
Imidazole= Toxic (rarely used) Triazole= Less toxic +Hepatotoxicity + CP450 interactions
Imidazole Example
Clotrimazole
Triazole Examples
Fluclonazole + Itraconazole +Voriconazole + Posaconazole + Isavuconazole
Fluconazole Spectrum
Yeasts
Itra/vori-conazole Spectrum
Yeasts + Aspergillus
Posa/isavu-conazole Spectrum
Yeasts +Aspergillus + Moulds
Imidazole use
Superfical topical dermatophyte infections
Triazole use
Oral/IV systemic infections (candidiasis+fluclonazole)
Echinocandin Action
Beta 1-3 Glucan synthase inhib
Echinocandin Examples
Anidulafungin
Echinocandin Spectrum
Aspergillus + Candida (not all moulds) (IV)
Echinocandin SE’s
MInimal
5-Flourocytosine facts
Cytosine analogue, inhibit RNA/Protein/DNA synth, Yeasts only, BM surpression, Cryptococcal meningitis (w/ AmB)
Griseofulvin facts
Inhibit mitosis, Dermatophyte Infections, children