Diphenhydramine vs Moxifloxacin

## Diphenhydramine vs Moxifloxacin: Overview

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

## Mechanism of Action

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

**Moxifloxacin**: Fourth-generation fluoroquinolone inhibiting DNA gyrase and topoisomerase IV with enhanced anaerobic activity.

## Pharmacokinetics

**Half-life**: Diphenhydramine — 2-8 hours; Moxifloxacin — 12 hours.

## Chemical Properties

**Molecular Formula**: Diphenhydramine — C17H21NO; Moxifloxacin — C21H24FN3O4.

**Molecular Weight**: Diphenhydramine — 255.3550 g/mol; Moxifloxacin — 401.4350 g/mol.

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