Diphenhydramine vs Sumatriptan

Diphenhydramine vs Sumatriptan: Overview

This comparison examines the pharmacological differences between Diphenhydramine and Sumatriptan.

Mechanism of Action

Diphenhydramine: First-generation H1 antihistamine with anticholinergic properties.

Sumatriptan: Selective 5-HT1B/1D receptor agonist.

Pharmacokinetics

Half-life: Diphenhydramine — 2-8 hours; Sumatriptan — 2.5 hours.

Chemical Properties

Molecular Formula: Diphenhydramine — C17H21NO; Sumatriptan — C14H21N3O2S.

Molecular Weight: Diphenhydramine — 255.3550 g/mol; Sumatriptan — 295.4020 g/mol.

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