Gefitinib vs Metformin

## Gefitinib vs Metformin: Overview

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

## Mechanism of Action

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

**Metformin**: Activates AMP-activated protein kinase, decreasing hepatic glucose production.

## Pharmacokinetics

**Half-life**: Gefitinib — 48 hours; Metformin — 4-9 hours.

## Chemical Properties

**Molecular Formula**: Gefitinib — C22H24ClFN4O3; Metformin — C4H11N5.

**Molecular Weight**: Gefitinib — 446.9000 g/mol; Metformin — 129.1640 g/mol.

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