Acetaminophen vs Citalopram

## Acetaminophen vs Citalopram: Overview

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

## Mechanism of Action

**Acetaminophen**: Inhibits prostaglandin synthesis in the CNS and peripherally blocks pain impulse generation.

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

## Pharmacokinetics

**Half-life**: Acetaminophen — 1-4 hours; Citalopram — 35 hours.

## Chemical Properties

**Molecular Formula**: Acetaminophen — C8H9NO2; Citalopram — C20H21FN2O.

**Molecular Weight**: Acetaminophen — 151.1630 g/mol; Citalopram — 324.3920 g/mol.

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