Captopril vs Propranolol

## Captopril vs Propranolol: Overview

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

## Mechanism of Action

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

**Propranolol**: Non-selective beta-adrenergic receptor blocker.

## Pharmacokinetics

**Half-life**: Captopril — 1.9 hours; Propranolol — 3-6 hours.

## Chemical Properties

**Molecular Formula**: Captopril — C9H15NO3S; Propranolol — C16H21NO2.

**Molecular Weight**: Captopril — 217.2850 g/mol; Propranolol — 259.3440 g/mol.

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