Cetirizine vs Nivolumab

## Cetirizine vs Nivolumab: Overview

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

## Mechanism of Action

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

**Nivolumab**: Fully human anti-PD-1 IgG4 monoclonal antibody restoring T-cell anti-tumor activity.

## Pharmacokinetics

**Half-life**: Cetirizine — 6.5-10 hours; Nivolumab — 27 days.

## Chemical Properties

**Molecular Formula**: Cetirizine — C21H25ClN2O3; Nivolumab — N/A.

**Molecular Weight**: Cetirizine — 388.8900 g/mol; Nivolumab — N/A.

**Type**: Cetirizine — Small molecule; Nivolumab — Antibody.