Cetirizine vs Gabapentin

## Cetirizine vs Gabapentin: Overview

This comparison examines the pharmacological differences between **Cetirizine** and **Gabapentin**.

## Mechanism of Action

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

**Gabapentin**: Binds alpha-2-delta subunit of voltage-gated calcium channels.

## Pharmacokinetics

**Half-life**: Cetirizine — 6.5-10 hours; Gabapentin — 5-7 hours.

## Chemical Properties

**Molecular Formula**: Cetirizine — C21H25ClN2O3; Gabapentin — C9H17NO2.

**Molecular Weight**: Cetirizine — 388.8900 g/mol; Gabapentin — 171.2370 g/mol.

**Type**: Cetirizine — Small molecule; Gabapentin — Small molecule.