Citalopram vs Diphenhydramine

Citalopram vs Diphenhydramine: Overview

This comparison examines the pharmacological differences between Citalopram and Diphenhydramine.

Mechanism of Action

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

Diphenhydramine: First-generation H1 antihistamine with anticholinergic properties.

Pharmacokinetics

Half-life: Citalopram — 35 hours; Diphenhydramine — 2-8 hours.

Chemical Properties

Molecular Formula: Citalopram — C20H21FN2O; Diphenhydramine — C17H21NO.

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

Type: Citalopram — Small molecule; Diphenhydramine — Small molecule.