Alprostadil vs Captopril

## Alprostadil vs Captopril: Overview

This comparison examines the pharmacological differences between **Alprostadil** and **Captopril**.

## Mechanism of Action

**Captopril**: First orally active ACE inhibitor; contains thiol group that binds zinc at ACE active site.

## Pharmacokinetics

**Half-life**: Alprostadil — N/A; Captopril — 1.9 hours.

## Chemical Properties

**Molecular Formula**: Alprostadil — N/A; Captopril — C9H15NO3S.

**Molecular Weight**: Alprostadil — N/A; Captopril — 217.2850 g/mol.

**Type**: Alprostadil — Small molecule; Captopril — Small molecule.