Gefitinib vs Ondansetron

## Gefitinib vs Ondansetron: Overview

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

## Mechanism of Action

**Gefitinib**: Selective reversible inhibitor of EGFR tyrosine kinase.

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

## Pharmacokinetics

**Half-life**: Gefitinib — 48 hours; Ondansetron — 3-5 hours.

## Chemical Properties

**Molecular Formula**: Gefitinib — C22H24ClFN4O3; Ondansetron — C18H19N3O.

**Molecular Weight**: Gefitinib — 446.9000 g/mol; Ondansetron — 293.3660 g/mol.

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