Cetirizine vs Sumatriptan

## Cetirizine vs Sumatriptan: Overview

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

## Mechanism of Action

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

**Sumatriptan**: Selective 5-HT1B/1D receptor agonist.

## Pharmacokinetics

**Half-life**: Cetirizine — 6.5-10 hours; Sumatriptan — 2.5 hours.

## Chemical Properties

**Molecular Formula**: Cetirizine — C21H25ClN2O3; Sumatriptan — C14H21N3O2S.

**Molecular Weight**: Cetirizine — 388.8900 g/mol; Sumatriptan — 295.4020 g/mol.

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