Captopril vs Valproic Acid

## Captopril vs Valproic Acid: Overview

This comparison examines the pharmacological differences between **Captopril** and **Valproic Acid**.

## Mechanism of Action

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

**Valproic Acid**: Enhances GABA transmission and blocks sodium/calcium channels.

## Pharmacokinetics

**Half-life**: Captopril — 1.9 hours; Valproic Acid — 9-16 hours.

## Chemical Properties

**Molecular Formula**: Captopril — C9H15NO3S; Valproic Acid — C8H16O2.

**Molecular Weight**: Captopril — 217.2850 g/mol; Valproic Acid — 144.2110 g/mol.

**Type**: Captopril — Small molecule; Valproic Acid — Small molecule.