Gefitinib vs Omeprazole

## Gefitinib vs Omeprazole: Overview

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

## Mechanism of Action

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

**Omeprazole**: Proton pump inhibitor that irreversibly blocks H+/K+-ATPase.

## Pharmacokinetics

**Half-life**: Gefitinib — 48 hours; Omeprazole — 0.5-1 hour.

## Chemical Properties

**Molecular Formula**: Gefitinib — C22H24ClFN4O3; Omeprazole — C17H19N3O3S.

**Molecular Weight**: Gefitinib — 446.9000 g/mol; Omeprazole — 345.4170 g/mol.

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