Diphenhydramine vs Midazolam

## Diphenhydramine vs Midazolam: Overview

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

## Mechanism of Action

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

**Midazolam**: Ultra-short-acting benzodiazepine GABA-A receptor positive allosteric modulator.

## Pharmacokinetics

**Half-life**: Diphenhydramine — 2-8 hours; Midazolam — 1.5-2.5 hours.

## Chemical Properties

**Molecular Formula**: Diphenhydramine — C17H21NO; Midazolam — C18H13ClFN3.

**Molecular Weight**: Diphenhydramine — 255.3550 g/mol; Midazolam — 325.7670 g/mol.

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