Cetirizine vs Valproic Acid

## Cetirizine vs Valproic Acid: Overview

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

## Mechanism of Action

**Cetirizine**: Second-generation H1 antihistamine.

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

## Pharmacokinetics

**Half-life**: Cetirizine — 6.5-10 hours; Valproic Acid — 9-16 hours.

## Chemical Properties

**Molecular Formula**: Cetirizine — C21H25ClN2O3; Valproic Acid — C8H16O2.

**Molecular Weight**: Cetirizine — 388.8900 g/mol; Valproic Acid — 144.2110 g/mol.

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