Citalopram vs Ondansetron

## Citalopram vs Ondansetron: Overview

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

## Mechanism of Action

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

**Ondansetron**: Selective 5-HT3 receptor antagonist.

## Pharmacokinetics

**Half-life**: Citalopram — 35 hours; Ondansetron — 3-5 hours.

## Chemical Properties

**Molecular Formula**: Citalopram — C20H21FN2O; Ondansetron — C18H19N3O.

**Molecular Weight**: Citalopram — 324.3920 g/mol; Ondansetron — 293.3660 g/mol.

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