Citalopram vs Tamoxifen

## Citalopram vs Tamoxifen: Overview

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

## Mechanism of Action

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

**Tamoxifen**: Selective estrogen receptor modulator (SERM).

## Pharmacokinetics

**Half-life**: Citalopram — 35 hours; Tamoxifen — 5-7 days.

## Chemical Properties

**Molecular Formula**: Citalopram — C20H21FN2O; Tamoxifen — C26H29NO.

**Molecular Weight**: Citalopram — 324.3920 g/mol; Tamoxifen — 371.5150 g/mol.

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