Captopril vs Nivolumab

## Captopril vs Nivolumab: Overview

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

## Mechanism of Action

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

**Nivolumab**: Fully human anti-PD-1 IgG4 monoclonal antibody restoring T-cell anti-tumor activity.

## Pharmacokinetics

**Half-life**: Captopril — 1.9 hours; Nivolumab — 27 days.

## Chemical Properties

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

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

**Type**: Captopril — Small molecule; Nivolumab — Antibody.