Voriconazole is used for all the diseases mentioned below except:
**Core Concept**
Voriconazole is a broad-spectrum antifungal medication used to treat various fungal infections. It belongs to the class of triazoles, which inhibit the synthesis of ergosterol, an essential component of fungal cell membranes.
**Why the Correct Answer is Right**
Voriconazole is effective against a wide range of fungal pathogens, including Aspergillus, Candida, and many others. Its mechanism of action involves the inhibition of lanosterol 14α-demethylase, an enzyme responsible for converting lanosterol to ergosterol. This leads to the accumulation of toxic compounds and ultimately to fungal cell death.
**Why Each Wrong Option is Incorrect**
* **Option A:** Voriconazole is used to treat invasive aspergillosis, a serious and potentially life-threatening infection caused by Aspergillus species. Therefore, this option is incorrect.
* **Option B:** Voriconazole is effective against many strains of Candida, including Candida albicans, Candida glabrata, and others. This option is incorrect because Voriconazole is indeed used to treat candidiasis.
* **Option C:** Voriconazole is used to treat fusariosis, a fungal infection caused by Fusarium species. This option is incorrect because Voriconazole is indeed effective against Fusarium infections.
**Clinical Pearl / High-Yield Fact**
Voriconazole is a substrate for the CYP2C19 enzyme, and its plasma levels can be significantly affected by polymorphisms in this gene. Patients with poor metabolizers (PMs) may require dose adjustments to avoid toxicity.
**Correct Answer:** D