Citalopram vs Rabeprazole

## Citalopram vs Rabeprazole: Overview

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

## Mechanism of Action

**Citalopram**: Selective serotonin reuptake inhibitor (SSRI); racemic mixture with escitalopram as active S-enantiomer.

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

## Pharmacokinetics

**Half-life**: Citalopram — 35 hours; Rabeprazole — 1-2 hours.

## Chemical Properties

**Molecular Formula**: Citalopram — C20H21FN2O; Rabeprazole — C18H21N3O3S.

**Molecular Weight**: Citalopram — 324.3920 g/mol; Rabeprazole — 359.4440 g/mol.

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