Citalopram vs Trastuzumab

## Citalopram vs Trastuzumab: Overview

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

## Mechanism of Action

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

**Trastuzumab**: Anti-HER2 monoclonal antibody inhibiting receptor signaling.

## Pharmacokinetics

**Half-life**: Citalopram — 35 hours; Trastuzumab — 28 days.

## Chemical Properties

**Molecular Formula**: Citalopram — C20H21FN2O; Trastuzumab — N/A.

**Molecular Weight**: Citalopram — 324.3920 g/mol; Trastuzumab — N/A.

**Type**: Citalopram — Small molecule; Trastuzumab — Antibody.