Citalopram vs Esomeprazole

## Citalopram vs Esomeprazole: Overview

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

## Mechanism of Action

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

**Esomeprazole**: S-isomer of omeprazole; proton pump inhibitor irreversibly blocking gastric H+/K+-ATPase.

## Pharmacokinetics

**Half-life**: Citalopram — 35 hours; Esomeprazole — 1-1.5 hours.

## Chemical Properties

**Molecular Formula**: Citalopram — C20H21FN2O; Esomeprazole — C17H19N3O3S.

**Molecular Weight**: Citalopram — 324.3920 g/mol; Esomeprazole — 345.4170 g/mol.

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