Cetirizine vs Fluoxetine

## Cetirizine vs Fluoxetine: Overview

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

## Mechanism of Action

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

**Fluoxetine**: Selective serotonin reuptake inhibitor (SSRI).

## Pharmacokinetics

**Half-life**: Cetirizine — 6.5-10 hours; Fluoxetine — 1-3 days.

## Chemical Properties

**Molecular Formula**: Cetirizine — C21H25ClN2O3; Fluoxetine — C17H18F3NO.

**Molecular Weight**: Cetirizine — 388.8900 g/mol; Fluoxetine — 309.3260 g/mol.

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