Allopurinol vs Phenylephrine

## Allopurinol vs Phenylephrine: Overview

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

## Mechanism of Action

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

## Pharmacokinetics

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

## Chemical Properties

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

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

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