Allopurinol vs Rituximab

## Allopurinol vs Rituximab: Overview

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

## Mechanism of Action

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

**Rituximab**: Chimeric anti-CD20 IgG1 monoclonal antibody inducing B-cell depletion via CDC, ADCC, and apoptosis.

## Pharmacokinetics

**Half-life**: Allopurinol — 1-2 hours; Rituximab — 22 days.

## Chemical Properties

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

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

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