Allopurinol vs Theophylline
## Allopurinol vs Theophylline: Overview
This comparison examines the pharmacological differences between **Allopurinol** and **Theophylline**.
## Mechanism of Action
**Allopurinol**: Xanthine oxidase inhibitor reducing uric acid production.
## Pharmacokinetics
**Half-life**: Allopurinol — 1-2 hours; Theophylline — N/A.
## Chemical Properties
**Molecular Formula**: Allopurinol — C5H4N4O; Theophylline — N/A.
**Molecular Weight**: Allopurinol — 136.1120 g/mol; Theophylline — N/A.
**Type**: Allopurinol — Small molecule; Theophylline — Protein.