Diphenhydramine vs Losartan

## Diphenhydramine vs Losartan: Overview

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

## Mechanism of Action

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

**Losartan**: Angiotensin II receptor type 1 antagonist.

## Pharmacokinetics

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

## Chemical Properties

**Molecular Formula**: Diphenhydramine — C17H21NO; Losartan — C22H23ClN6O.

**Molecular Weight**: Diphenhydramine — 255.3550 g/mol; Losartan — 422.9200 g/mol.

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