Allopurinol vs Montelukast

## Allopurinol vs Montelukast: Overview

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

## Mechanism of Action

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

**Montelukast**: Selective leukotriene D4 receptor antagonist.

## Pharmacokinetics

**Half-life**: Allopurinol — 1-2 hours; Montelukast — 2.7-5.5 hours.

## Chemical Properties

**Molecular Formula**: Allopurinol — C5H4N4O; Montelukast — C35H36ClNO3S.

**Molecular Weight**: Allopurinol — 136.1120 g/mol; Montelukast — 586.1800 g/mol.

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