Voriconazole is an antifungal used to treat serious fungal infections. Voriconazole inhibits ergosterol synthesis by inhibiting CYP450-dependent 14-α sterol demethylase resulting in a depletion of ergosterol in fungal cell membranes.Voriconazole undergoes extensive hepatic metabolism via the cytochrome P450 enzymes, primarily CYP2C9 and CYP3A4. In addition, voriconazole also causes some side effects, such as visual disturbances, skin rashes and elevations in hepatic enzyme levels.
|Body Surface Area (m2)||0.007||0.025||0.15||0.05||0.02||0.5|
|Animal A (mg/kg) = Animal B (mg/kg) multiplied by||Animal B Km|
|Animal A Km|
For example, to modify the dose of resveratrol used for a mouse (22.4 mg/kg) to a dose based on the BSA for a rat, multiply 22.4 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for resveratrol of 11.2 mg/kg.
Activities of caspofungin, itraconazole, posaconazole, ravuconazole, voriconazole, and amphotericin B against 448 recent clinical isolates of filamentous fungi.
Diekema DJ, et al. J Clin Microbiol. 2003 Aug;41(8):3623-6. PMID: 12904365.
In vitro activities of voriconazole (UK-109,496) and four other antifungal agents against 394 clinical isolates of Candida spp.
Marco F, et al. Antimicrob Agents Chemother. 1998 Jan;42(1):161-3. PMID: 9449278.
|Related Cytochrome P450 (e.g. CYP17) Products|
Fluconazole is a fungal lanosterol 14 alpha-demethylase inhibitor, which thereby prevents the formation of ergosterol,used in the treatment and prevention of superficial and systemic fungal infections.
Furafylline was a potent, non-competitive inhibitor of high affinity phenacetin O-deethylase activity of microsomal fractions of human liver, a reaction catalysed by P450IA2, with an IC50 value of 0.07 microM.
Naringenin, a common dietary flavonoid abundantly present in fruits and vegetables, is believed to possess strong anti-proliferative properties and the ability to induce apoptosis in hepatoma cell lines.
Anastrozole is a potent and highly selective aromatase (CYP19) inhibitor (IC50 = 15 nM) that has no discernible effect on adrenocorticoid hormone synthesis.
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