Dexamethasone vs Diphenhydramine

Dexamethasone vs Diphenhydramine: Overview

This comparison examines the pharmacological differences between Dexamethasone and Diphenhydramine.

Mechanism of Action

Dexamethasone: Potent synthetic glucocorticoid.

Diphenhydramine: First-generation H1 antihistamine with anticholinergic properties.

Pharmacokinetics

Half-life: Dexamethasone — 36-54 hours; Diphenhydramine — 2-8 hours.

Chemical Properties

Molecular Formula: Dexamethasone — C22H29FO5; Diphenhydramine — C17H21NO.

Molecular Weight: Dexamethasone — 392.4610 g/mol; Diphenhydramine — 255.3550 g/mol.

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