Captopril vs Pregabalin

## Captopril vs Pregabalin: Overview

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

## Mechanism of Action

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

**Pregabalin**: Binds alpha-2-delta subunit of voltage-gated calcium channels.

## Pharmacokinetics

**Half-life**: Captopril — 1.9 hours; Pregabalin — 6.3 hours.

## Chemical Properties

**Molecular Formula**: Captopril — C9H15NO3S; Pregabalin — C8H17NO2.

**Molecular Weight**: Captopril — 217.2850 g/mol; Pregabalin — 159.2260 g/mol.

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