Allopurinol vs Celecoxib

## Allopurinol vs Celecoxib: Overview

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

## Mechanism of Action

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

**Celecoxib**: Selective COX-2 inhibitor.

## Pharmacokinetics

**Half-life**: Allopurinol — 1-2 hours; Celecoxib — 11 hours.

## Chemical Properties

**Molecular Formula**: Allopurinol — C5H4N4O; Celecoxib — C17H14F3N3O2S.

**Molecular Weight**: Allopurinol — 136.1120 g/mol; Celecoxib — 381.3730 g/mol.

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