Acetaminophen vs Allopurinol

## Acetaminophen vs Allopurinol: Overview

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

## Mechanism of Action

**Acetaminophen**: Inhibits prostaglandin synthesis in the CNS and peripherally blocks pain impulse generation.

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

## Pharmacokinetics

**Half-life**: Acetaminophen — 1-4 hours; Allopurinol — 1-2 hours.

## Chemical Properties

**Molecular Formula**: Acetaminophen — C8H9NO2; Allopurinol — C5H4N4O.

**Molecular Weight**: Acetaminophen — 151.1630 g/mol; Allopurinol — 136.1120 g/mol.

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