Diphenhydramine vs Lisinopril

## Diphenhydramine vs Lisinopril: Overview

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

## Mechanism of Action

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

**Lisinopril**: ACE inhibitor preventing conversion of angiotensin I to angiotensin II.

## Pharmacokinetics

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

## Chemical Properties

**Molecular Formula**: Diphenhydramine — C17H21NO; Lisinopril — C21H31N3O5.

**Molecular Weight**: Diphenhydramine — 255.3550 g/mol; Lisinopril — 405.4900 g/mol.

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