Ondansetron vs Trastuzumab

## Ondansetron vs Trastuzumab: Overview

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

## Mechanism of Action

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

**Trastuzumab**: Anti-HER2 monoclonal antibody inhibiting receptor signaling.

## Pharmacokinetics

**Half-life**: Ondansetron — 3-5 hours; Trastuzumab — 28 days.

## Chemical Properties

**Molecular Formula**: Ondansetron — C18H19N3O; Trastuzumab — N/A.

**Molecular Weight**: Ondansetron — 293.3660 g/mol; Trastuzumab — N/A.

**Type**: Ondansetron — Small molecule; Trastuzumab — Antibody.