Sildenafil vs Valsartan

## Sildenafil vs Valsartan: Overview

This comparison examines the pharmacological differences between **Sildenafil** and **Valsartan**.

## Mechanism of Action

**Sildenafil**: Selective PDE5 inhibitor increasing cGMP.

**Valsartan**: Angiotensin II type 1 receptor blocker.

## Pharmacokinetics

**Half-life**: Sildenafil — 4 hours; Valsartan — 6 hours.

## Chemical Properties

**Molecular Formula**: Sildenafil — C22H30N6O4S; Valsartan — C24H29N5O3.

**Molecular Weight**: Sildenafil — 474.5800 g/mol; Valsartan — 435.5190 g/mol.

**Type**: Sildenafil — Small molecule; Valsartan — Small molecule.