Allopurinol vs Pembrolizumab

## Allopurinol vs Pembrolizumab: Overview

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

## Mechanism of Action

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

**Pembrolizumab**: Anti-PD-1 monoclonal antibody restoring anti-tumor immunity.

## Pharmacokinetics

**Half-life**: Allopurinol — 1-2 hours; Pembrolizumab — 26 days.

## Chemical Properties

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

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

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