Sildenafil vs Warfarin

## Sildenafil vs Warfarin: Overview

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

## Mechanism of Action

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

**Warfarin**: Inhibits vitamin K epoxide reductase complex.

## Pharmacokinetics

**Half-life**: Sildenafil — 4 hours; Warfarin — 20-60 hours.

## Chemical Properties

**Molecular Formula**: Sildenafil — C22H30N6O4S; Warfarin — C19H16O4.

**Molecular Weight**: Sildenafil — 474.5800 g/mol; Warfarin — 308.3280 g/mol.

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