Allopurinol vs Atezolizumab

## Allopurinol vs Atezolizumab: Overview

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

## Mechanism of Action

**Allopurinol**: Xanthine oxidase inhibitor reducing uric acid production.

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

## Pharmacokinetics

**Half-life**: Allopurinol — 1-2 hours; Atezolizumab — 27 days.

## Chemical Properties

**Molecular Formula**: Allopurinol — C5H4N4O; Atezolizumab — N/A.

**Molecular Weight**: Allopurinol — 136.1120 g/mol; Atezolizumab — N/A.

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