What is the mechanism of action of Fluconazole?
Correct Answer: Inhibits lanosterol 14 demethylase
Description: Ref. KDT. Page. 793
Fluconazole
They inhibit the fungal cytochrome P450 enzyme ‘lanosterol 14-demethylase’ and thus impair ergosterol synthesis leading to a cascade of membrane abnormalities in the fungus.
lower affinity for mammalian CYP450 enzymes and lesser propensity to inhibit mammalian sterol synthesis – causes less side effects
It is a water-soluble triazole having a wider range of activity
Indications include cryptococcal meningitis, systemic and mucosal candidiasis in both normal and immunocompromised patients, coccidioidal meningitis and histoplasmosis
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