Omeprazole vs Ranitidine

## Omeprazole vs Ranitidine: Overview

This comparison examines the pharmacological differences between **Omeprazole** and **Ranitidine**.

## Mechanism of Action

**Omeprazole**: Proton pump inhibitor that irreversibly blocks H+/K+-ATPase.

**Ranitidine**: Competitive H2 receptor antagonist.

## Pharmacokinetics

**Half-life**: Omeprazole — 0.5-1 hour; Ranitidine — 2-3 hours.

## Chemical Properties

**Molecular Formula**: Omeprazole — C17H19N3O3S; Ranitidine — C13H22N4O3S.

**Molecular Weight**: Omeprazole — 345.4170 g/mol; Ranitidine — 314.4050 g/mol.

**Type**: Omeprazole — Small molecule; Ranitidine — Small molecule.