Sildenafil vs Tamsulosin

## Sildenafil vs Tamsulosin: Overview

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

## Mechanism of Action

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

**Tamsulosin**: Selective alpha-1A adrenergic receptor antagonist.

## Pharmacokinetics

**Half-life**: Sildenafil — 4 hours; Tamsulosin — 10-13 hours.

## Chemical Properties

**Molecular Formula**: Sildenafil — C22H30N6O4S; Tamsulosin — C20H28N2O5S.

**Molecular Weight**: Sildenafil — 474.5800 g/mol; Tamsulosin — 408.5100 g/mol.

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