Diphenhydramine vs Warfarin

## Diphenhydramine vs Warfarin: Overview

This comparison examines the pharmacological differences between **Diphenhydramine** and **Warfarin**.

## Mechanism of Action

**Diphenhydramine**: First-generation H1 antihistamine with anticholinergic properties.

**Warfarin**: Inhibits vitamin K epoxide reductase complex.

## Pharmacokinetics

**Half-life**: Diphenhydramine — 2-8 hours; Warfarin — 20-60 hours.

## Chemical Properties

**Molecular Formula**: Diphenhydramine — C17H21NO; Warfarin — C19H16O4.

**Molecular Weight**: Diphenhydramine — 255.3550 g/mol; Warfarin — 308.3280 g/mol.

**Type**: Diphenhydramine — Small molecule; Warfarin — Small molecule.