Gefitinib vs Osimertinib Mesylate

## Gefitinib vs Osimertinib Mesylate: Overview

This comparison examines the pharmacological differences between **Gefitinib** and **Osimertinib Mesylate**.

## Mechanism of Action

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

## Pharmacokinetics

**Half-life**: Gefitinib — 48 hours; Osimertinib Mesylate — N/A.

## Chemical Properties

**Molecular Formula**: Gefitinib — C22H24ClFN4O3; Osimertinib Mesylate — N/A.

**Molecular Weight**: Gefitinib — 446.9000 g/mol; Osimertinib Mesylate — N/A.

**Type**: Gefitinib — Small molecule; Osimertinib Mesylate — Small molecule.