Diphenhydramine vs Morphine

## Diphenhydramine vs Morphine: Overview

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

## Mechanism of Action

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

**Morphine**: Mu-opioid receptor agonist.

## Pharmacokinetics

**Half-life**: Diphenhydramine — 2-8 hours; Morphine — 2-3 hours.

## Chemical Properties

**Molecular Formula**: Diphenhydramine — C17H21NO; Morphine — C17H19NO3.

**Molecular Weight**: Diphenhydramine — 255.3550 g/mol; Morphine — 285.3380 g/mol.

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