Alvimopan vs Captopril

## Alvimopan vs Captopril: Overview

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

## Mechanism of Action

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

## Pharmacokinetics

**Half-life**: Alvimopan — N/A; Captopril — 1.9 hours.

## Chemical Properties

**Molecular Formula**: Alvimopan — N/A; Captopril — C9H15NO3S.

**Molecular Weight**: Alvimopan — N/A; Captopril — 217.2850 g/mol.

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