Atenolol vs Captopril

## Atenolol vs Captopril: Overview

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

## Mechanism of Action

**Atenolol**: Cardioselective beta-1 adrenergic receptor blocker without intrinsic sympathomimetic activity.

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

## Pharmacokinetics

**Half-life**: Atenolol — 6-7 hours; Captopril — 1.9 hours.

## Chemical Properties

**Molecular Formula**: Atenolol — C14H22N2O3; Captopril — C9H15NO3S.

**Molecular Weight**: Atenolol — 266.3360 g/mol; Captopril — 217.2850 g/mol.

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