Diphenhydramine vs Prednisone

Diphenhydramine vs Prednisone: Overview

This comparison examines the pharmacological differences between Diphenhydramine and Prednisone.

Mechanism of Action

Diphenhydramine: First-generation H1 antihistamine with anticholinergic properties.

Prednisone: Synthetic corticosteroid; suppresses inflammation via glucocorticoid receptor.

Pharmacokinetics

Half-life: Diphenhydramine — 2-8 hours; Prednisone — 2-3 hours.

Chemical Properties

Molecular Formula: Diphenhydramine — C17H21NO; Prednisone — C21H26O5.

Molecular Weight: Diphenhydramine — 255.3550 g/mol; Prednisone — 358.4280 g/mol.

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