Allopurinol vs Morphine
## Allopurinol vs Morphine: Overview
This comparison examines the pharmacological differences between **Allopurinol** and **Morphine**.
## Mechanism of Action
**Allopurinol**: Xanthine oxidase inhibitor reducing uric acid production.
**Morphine**: Mu-opioid receptor agonist.
## Pharmacokinetics
**Half-life**: Allopurinol — 1-2 hours; Morphine — 2-3 hours.
## Chemical Properties
**Molecular Formula**: Allopurinol — C5H4N4O; Morphine — C17H19NO3.
**Molecular Weight**: Allopurinol — 136.1120 g/mol; Morphine — 285.3380 g/mol.
**Type**: Allopurinol — Small molecule; Morphine — Small molecule.