Diphenhydramine vs Telmisartan

## Diphenhydramine vs Telmisartan: Overview

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

## Mechanism of Action

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

**Telmisartan**: Selective angiotensin II type 1 receptor antagonist; also a partial PPAR-gamma agonist.

## Pharmacokinetics

**Half-life**: Diphenhydramine — 2-8 hours; Telmisartan — 24 hours.

## Chemical Properties

**Molecular Formula**: Diphenhydramine — C17H21NO; Telmisartan — C33H30N4O2.

**Molecular Weight**: Diphenhydramine — 255.3550 g/mol; Telmisartan — 514.6230 g/mol.

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