Prednisone vs Sildenafil

## Prednisone vs Sildenafil: Overview

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

## Mechanism of Action

**Prednisone**: Synthetic corticosteroid; suppresses inflammation via glucocorticoid receptor.

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

## Pharmacokinetics

**Half-life**: Prednisone — 2-3 hours; Sildenafil — 4 hours.

## Chemical Properties

**Molecular Formula**: Prednisone — C21H26O5; Sildenafil — C22H30N6O4S.

**Molecular Weight**: Prednisone — 358.4280 g/mol; Sildenafil — 474.5800 g/mol.

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