Metoprolol vs Sildenafil

## Metoprolol vs Sildenafil: Overview

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

## Mechanism of Action

**Metoprolol**: Selective beta-1 adrenergic receptor blocker.

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

## Pharmacokinetics

**Half-life**: Metoprolol — 3-7 hours; Sildenafil — 4 hours.

## Chemical Properties

**Molecular Formula**: Metoprolol — C15H25NO3; Sildenafil — C22H30N6O4S.

**Molecular Weight**: Metoprolol — 267.3640 g/mol; Sildenafil — 474.5800 g/mol.

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