Pravastatin vs Sildenafil

## Pravastatin vs Sildenafil: Overview

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

## Mechanism of Action

**Pravastatin**: Competitive inhibitor of HMG-CoA reductase.

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

## Pharmacokinetics

**Half-life**: Pravastatin — 1.8 hours; Sildenafil — 4 hours.

## Chemical Properties

**Molecular Formula**: Pravastatin — C23H36O7; Sildenafil — C22H30N6O4S.

**Molecular Weight**: Pravastatin — 424.5280 g/mol; Sildenafil — 474.5800 g/mol.

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