Cetirizine vs Ipilimumab

## Cetirizine vs Ipilimumab: Overview

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

## Mechanism of Action

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

**Ipilimumab**: Fully human anti-CTLA-4 IgG1 monoclonal antibody that blocks CTLA-4 inhibitory signaling.

## Pharmacokinetics

**Half-life**: Cetirizine — 6.5-10 hours; Ipilimumab — 14.7 days.

## Chemical Properties

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

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

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