Antifungals, Hair Flashcards
hepatotoxicity
voriconazole, terbinafine (rare), posaconazole, itraconazole, fluconazole
Sexual dysfunction, loss of libido, feminization
finasteride
Distributes to breast milk
itraconazole
CYP
voriconazole, posaconazole, itraconazole, fluconazole
increased effects with saw palmetto
finasteride
decreases DHT concentrations in serum/scalp
finasteride
disfavored in young patients w/ immature BBB
ivermectin
QT prolongation and dysrhythmia
voriconazole, posaconazole, fluconazole
Permethrin MOA
binds voltage gated Na channels, causing hyperexcitability and paralysis (not effective against human Na channels)
Optic neuritis
voriconazole
methoxsalen MOA
activated by UVA, which leads to cross linking and conj of DNA (=cell death)
ovicidal
mathalon
lindane contraindications
uncontrolled seizure d/o
oral anti-lice trx
ivermectin
anti-louse which may increases liver enzymes
ivermectin
resistance driven by kdr mutation
permethrin
lindane BBW
skin d/o, neonatal prematurity
Itraconazole BBW
heart failure, ventricular dysf, co-administration with drugs
Block ergosterol synthesis
amorolfine, fluconazole, itraconazole
Asthma exacerbation in pts allergic to ragweed
permethrin
MOA of malathion
metabolized to malaoxon in louse which inhibits AChEsterase
Trypanostatic
eflornithine
do not combine with topical azoles
naftifine
Should be taken with a meal or carbonated drink
posaconazole
contraception for ~2mo after d/c
itraconazole
lindane MOA
GABA blockade
avoid if ICH
terbinafine
Contraindicated post partum
itraconazole
Locally bactericidal
naftifine
anti-inflammatory
naftifine
Category D
voriconazole, fluconazole
Category B
terbinafine, naftifine
ivermectin MOA
bunds glutamate-gated Cl channels (invertebrate nerve/muscle cells)
may worsen bronchial asthma
ivermectin
MOA of eflornithine
decreases ornithine decarboxylase, which decreases cell division and differentiation in hair follicles
persists in environment
lindane
Category C
posaconazole, itraconazole
Must continue trx to maintain effects
minoxidil
testosterone analog, blocks 5-alpha-reductase activity
finasteride
S/E of mathalon if ingested?
SLUDGEBBB
potential seizures/death
lindane
MOA of ciclopirox
blocks fungal transmem transport = no essential substrates (interferes w DNA/RNA synth)
Photosensitivity
voriconazole *SCC, M