Allopurinol vs Phentermine

## Allopurinol vs Phentermine: Overview

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

## Mechanism of Action

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

## Pharmacokinetics

**Half-life**: Allopurinol — 1-2 hours; Phentermine — N/A.

## Chemical Properties

**Molecular Formula**: Allopurinol — C5H4N4O; Phentermine — N/A.

**Molecular Weight**: Allopurinol — 136.1120 g/mol; Phentermine — N/A.

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