Atezolizumab vs Celecoxib

## Atezolizumab vs Celecoxib: Overview

This comparison examines the pharmacological differences between **Atezolizumab** and **Celecoxib**.

## Mechanism of Action

**Atezolizumab**: Fully human anti-PD-L1 IgG1 monoclonal antibody blocking PD-L1 interaction with PD-1 and B7.1.

**Celecoxib**: Selective COX-2 inhibitor.

## Pharmacokinetics

**Half-life**: Atezolizumab — 27 days; Celecoxib — 11 hours.

## Chemical Properties

**Molecular Formula**: Atezolizumab — N/A; Celecoxib — C17H14F3N3O2S.

**Molecular Weight**: Atezolizumab — N/A; Celecoxib — 381.3730 g/mol.

**Type**: Atezolizumab — Antibody; Celecoxib — Small molecule.