Cetirizine vs Tramadol

## Cetirizine vs Tramadol: Overview

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

## Mechanism of Action

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

**Tramadol**: Mu-opioid receptor agonist and serotonin-norepinephrine reuptake inhibitor.

## Pharmacokinetics

**Half-life**: Cetirizine — 6.5-10 hours; Tramadol — 5-7 hours.

## Chemical Properties

**Molecular Formula**: Cetirizine — C21H25ClN2O3; Tramadol — C16H25NO2.

**Molecular Weight**: Cetirizine — 388.8900 g/mol; Tramadol — 263.3750 g/mol.

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