Captopril vs Morphine

## Captopril vs Morphine: Overview

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

## Mechanism of Action

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

**Morphine**: Mu-opioid receptor agonist.

## Pharmacokinetics

**Half-life**: Captopril — 1.9 hours; Morphine — 2-3 hours.

## Chemical Properties

**Molecular Formula**: Captopril — C9H15NO3S; Morphine — C17H19NO3.

**Molecular Weight**: Captopril — 217.2850 g/mol; Morphine — 285.3380 g/mol.

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