Cetirizine vs Fluconazole

## Cetirizine vs Fluconazole: Overview

This comparison examines the pharmacological differences between **Cetirizine** and **Fluconazole**.

## Mechanism of Action

**Cetirizine**: Second-generation H1 antihistamine.

**Fluconazole**: Inhibits fungal CYP51 (lanosterol 14-alpha-demethylase).

## Pharmacokinetics

**Half-life**: Cetirizine — 6.5-10 hours; Fluconazole — 30 hours.

## Chemical Properties

**Molecular Formula**: Cetirizine — C21H25ClN2O3; Fluconazole — C13H12F2N6O.

**Molecular Weight**: Cetirizine — 388.8900 g/mol; Fluconazole — 306.2710 g/mol.

**Type**: Cetirizine — Small molecule; Fluconazole — Small molecule.