Allopurinol vs Ranitidine

## Allopurinol vs Ranitidine: Overview

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

## Mechanism of Action

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

**Ranitidine**: Competitive H2 receptor antagonist.

## Pharmacokinetics

**Half-life**: Allopurinol — 1-2 hours; Ranitidine — 2-3 hours.

## Chemical Properties

**Molecular Formula**: Allopurinol — C5H4N4O; Ranitidine — C13H22N4O3S.

**Molecular Weight**: Allopurinol — 136.1120 g/mol; Ranitidine — 314.4050 g/mol.

**Type**: Allopurinol — Small molecule; Ranitidine — Small molecule.