Citalopram vs Pembrolizumab

## Citalopram vs Pembrolizumab: Overview

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

## Mechanism of Action

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

**Pembrolizumab**: Anti-PD-1 monoclonal antibody restoring anti-tumor immunity.

## Pharmacokinetics

**Half-life**: Citalopram — 35 hours; Pembrolizumab — 26 days.

## Chemical Properties

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

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

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