Diphenhydramine vs Escitalopram

## Diphenhydramine vs Escitalopram: Overview

This comparison examines the pharmacological differences between **Diphenhydramine** and **Escitalopram**.

## Mechanism of Action

**Diphenhydramine**: First-generation H1 antihistamine with anticholinergic properties.

**Escitalopram**: S-enantiomer of citalopram; selective serotonin reuptake inhibitor.

## Pharmacokinetics

**Half-life**: Diphenhydramine — 2-8 hours; Escitalopram — 27-32 hours.

## Chemical Properties

**Molecular Formula**: Diphenhydramine — C17H21NO; Escitalopram — C20H21FN2O.

**Molecular Weight**: Diphenhydramine — 255.3550 g/mol; Escitalopram — 324.3920 g/mol.

**Type**: Diphenhydramine — Small molecule; Escitalopram — Small molecule.