Finasteride vs Gefitinib

## Finasteride vs Gefitinib: Overview

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

## Mechanism of Action

**Finasteride**: Competitive inhibitor of 5-alpha-reductase type II.

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

## Pharmacokinetics

**Half-life**: Finasteride — 5-6 hours; Gefitinib — 48 hours.

## Chemical Properties

**Molecular Formula**: Finasteride — C23H36N2O2; Gefitinib — C22H24ClFN4O3.

**Molecular Weight**: Finasteride — 372.5490 g/mol; Gefitinib — 446.9000 g/mol.

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