Antifungals Flashcards
polyene (names)
amphotericin B
nystatin
polyene MOA
bind ergosterol –> damage cell mem
can be fungistatic or cidal
amphotericin B indication
progressive/severe fungal infections
systemic fungal infect
GI infect by candida
amphotericin B ADRs
infusion rxn nephrotoxicity (esp if immunocomp) hypotension tachycardia fever/chills hypokalemia, hypoMg anorexia, N/V/D/cramp decrease renal fnx
binds human cholest too…
amphotericin B CI
not during breast feeding
amphotericin B drug interactions
nephrotoxic agents some chemo/aminoglycosides cyclosptrines pentamidine steriods --> hypoK digoxin imadazoles flucytosine
nystatin indication
candidiasis (intestinal, oral, vulvovaginal)
diaper dermatitis
nystatin CI
preg cat C
nystatin ADRs
N/V/D (only D with large dose)
abd cramp
rash, urticaria (rare)
SJS (rare)
nystatin caution
avoid sex til done
avoid tampons, etc
avoid tight things
antifungal azoles (names)
fluconazole, itraconazole, voraconazole, posaconazole, ketoconazole, isavuconazium sulfate, efinconazole
antifungal azole MOA
inhib P450 (3A4 & 2C9) and the conversion of lanosterol –> ergosterol
–> increase cell mem perm
fungicidal
fluconazole indications
candidiasis
cryptococcal meningitis
intertriginous candidia (off label)
fluconazole ADRs
generally mild
1 dose: HA, N/V/D, dyspepsia, abd pn, metallic taste
multi-dose: N/V/D/pn, liver probs (rare)
QT prolongations
fluconazole CI
preg cat C (except the 1 pill for vag infect –> cat C)
itraconazole indication
pulm and extrapul blastomycosis histoplasmosis aspergillus onychomycosis oral/esoph candidiasis
itraconazole ADRs
neuropathy hepatic failure (rare) hearing loss (rare) gynecomastia (rare) N/V rash
itraconazole CI
taking trazolam or midazolam
heart failure/venricular dysfunction
breast feeding
preg cat C
itraconazole caution
CHF
use of Ca channel blockers
long T1/2
voriconazole indication
invasive aspergillus
disseminated candidiasis
esophageal candidiasis
serious infect
voriconazole ADRs
visual distrubances fever/chills N/V rash HA abnormal LFT tachycardia hallucination infusion rxn SJS/TEN photosensitivity
voriconazole CI
preg cat D