Captopril vs Rivaroxaban

## Captopril vs Rivaroxaban: Overview

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

## Mechanism of Action

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

**Rivaroxaban**: Direct Factor Xa inhibitor.

## Pharmacokinetics

**Half-life**: Captopril — 1.9 hours; Rivaroxaban — 5-9 hours.

## Chemical Properties

**Molecular Formula**: Captopril — C9H15NO3S; Rivaroxaban — C19H18ClN3O5S.

**Molecular Weight**: Captopril — 217.2850 g/mol; Rivaroxaban — 435.8820 g/mol.

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