Cetirizine vs Trazodone

## Cetirizine vs Trazodone: Overview

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

## Mechanism of Action

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

**Trazodone**: Serotonin antagonist and reuptake inhibitor (SARI).

## Pharmacokinetics

**Half-life**: Cetirizine — 6.5-10 hours; Trazodone — 5-9 hours.

## Chemical Properties

**Molecular Formula**: Cetirizine — C21H25ClN2O3; Trazodone — C19H22ClN5O.

**Molecular Weight**: Cetirizine — 388.8900 g/mol; Trazodone — 371.8640 g/mol.

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