Allopurinol vs Topiramate

## Allopurinol vs Topiramate: Overview

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

## Mechanism of Action

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

**Topiramate**: Multiple mechanisms: Na+ channel block, GABA enhancement, glutamate inhibition.

## Pharmacokinetics

**Half-life**: Allopurinol — 1-2 hours; Topiramate — 21 hours.

## Chemical Properties

**Molecular Formula**: Allopurinol — C5H4N4O; Topiramate — C12H21NO8S.

**Molecular Weight**: Allopurinol — 136.1120 g/mol; Topiramate — 339.3630 g/mol.

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