Diphenhydramine vs Hydrochlorothiazide

Diphenhydramine vs Hydrochlorothiazide: Overview

This comparison examines the pharmacological differences between Diphenhydramine and Hydrochlorothiazide.

Mechanism of Action

Diphenhydramine: First-generation H1 antihistamine with anticholinergic properties.

Hydrochlorothiazide: Inhibits Na+/Cl- cotransporter in distal convoluted tubule.

Pharmacokinetics

Half-life: Diphenhydramine — 2-8 hours; Hydrochlorothiazide — 6-15 hours.

Chemical Properties

Molecular Formula: Diphenhydramine — C17H21NO; Hydrochlorothiazide — C7H8ClN3O4S2.

Molecular Weight: Diphenhydramine — 255.3550 g/mol; Hydrochlorothiazide — 297.7400 g/mol.

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