Captopril vs Hydroxychloroquine

## Captopril vs Hydroxychloroquine: Overview

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

## Mechanism of Action

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

**Hydroxychloroquine**: Accumulates in lysosomes raising pH; inhibits toll-like receptor signaling.

## Pharmacokinetics

**Half-life**: Captopril — 1.9 hours; Hydroxychloroquine — 40-50 days.

## Chemical Properties

**Molecular Formula**: Captopril — C9H15NO3S; Hydroxychloroquine — C18H26ClN3O.

**Molecular Weight**: Captopril — 217.2850 g/mol; Hydroxychloroquine — 335.8720 g/mol.

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