Captopril vs Tramadol

## Captopril vs Tramadol: Overview

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

## Mechanism of Action

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

**Tramadol**: Mu-opioid receptor agonist and serotonin-norepinephrine reuptake inhibitor.

## Pharmacokinetics

**Half-life**: Captopril — 1.9 hours; Tramadol — 5-7 hours.

## Chemical Properties

**Molecular Formula**: Captopril — C9H15NO3S; Tramadol — C16H25NO2.

**Molecular Weight**: Captopril — 217.2850 g/mol; Tramadol — 263.3750 g/mol.

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