Allopurinol vs Metronidazole

## Allopurinol vs Metronidazole: Overview

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

## Mechanism of Action

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

**Metronidazole**: Forms cytotoxic free radicals that damage bacterial DNA.

## Pharmacokinetics

**Half-life**: Allopurinol — 1-2 hours; Metronidazole — 8 hours.

## Chemical Properties

**Molecular Formula**: Allopurinol — C5H4N4O; Metronidazole — C6H9N3O3.

**Molecular Weight**: Allopurinol — 136.1120 g/mol; Metronidazole — 171.1540 g/mol.

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