Allopurinol vs Hydroxychloroquine

## Allopurinol vs Hydroxychloroquine: Overview

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

## Mechanism of Action

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

**Hydroxychloroquine**: Accumulates in lysosomes raising pH; inhibits toll-like receptor signaling.

## Pharmacokinetics

**Half-life**: Allopurinol — 1-2 hours; Hydroxychloroquine — 40-50 days.

## Chemical Properties

**Molecular Formula**: Allopurinol — C5H4N4O; Hydroxychloroquine — C18H26ClN3O.

**Molecular Weight**: Allopurinol — 136.1120 g/mol; Hydroxychloroquine — 335.8720 g/mol.

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