Citalopram vs Tacrolimus

## Citalopram vs Tacrolimus: Overview

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

## Mechanism of Action

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

**Tacrolimus**: Calcineurin inhibitor binding FKBP12; suppresses IL-2 transcription.

## Pharmacokinetics

**Half-life**: Citalopram — 35 hours; Tacrolimus — 12 hours.

## Chemical Properties

**Molecular Formula**: Citalopram — C20H21FN2O; Tacrolimus — C44H69NO12.

**Molecular Weight**: Citalopram — 324.3920 g/mol; Tacrolimus — 804.0180 g/mol.

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