Ondansetron vs Sumatriptan

## Ondansetron vs Sumatriptan: Overview

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

## Mechanism of Action

**Ondansetron**: Selective 5-HT3 receptor antagonist.

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

## Pharmacokinetics

**Half-life**: Ondansetron — 3-5 hours; Sumatriptan — 2.5 hours.

## Chemical Properties

**Molecular Formula**: Ondansetron — C18H19N3O; Sumatriptan — C14H21N3O2S.

**Molecular Weight**: Ondansetron — 293.3660 g/mol; Sumatriptan — 295.4020 g/mol.

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