Rabeprazole vs Ranitidine

## Rabeprazole vs Ranitidine: Overview

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

## Mechanism of Action

**Rabeprazole**: Proton pump inhibitor irreversibly inhibiting gastric H+/K+-ATPase with faster onset than omeprazole.

**Ranitidine**: Competitive H2 receptor antagonist.

## Pharmacokinetics

**Half-life**: Rabeprazole — 1-2 hours; Ranitidine — 2-3 hours.

## Chemical Properties

**Molecular Formula**: Rabeprazole — C18H21N3O3S; Ranitidine — C13H22N4O3S.

**Molecular Weight**: Rabeprazole — 359.4440 g/mol; Ranitidine — 314.4050 g/mol.

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