Allopurinol vs Cephalexin

## Allopurinol vs Cephalexin: Overview

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

## Mechanism of Action

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

**Cephalexin**: First-generation cephalosporin inhibiting cell wall synthesis.

## Pharmacokinetics

**Half-life**: Allopurinol — 1-2 hours; Cephalexin — 0.5-1.2 hours.

## Chemical Properties

**Molecular Formula**: Allopurinol — C5H4N4O; Cephalexin — C16H17N3O4S.

**Molecular Weight**: Allopurinol — 136.1120 g/mol; Cephalexin — 347.3890 g/mol.

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