Doxycycline vs Gefitinib

## Doxycycline vs Gefitinib: Overview

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

## Mechanism of Action

**Doxycycline**: Inhibits bacterial protein synthesis by binding 30S ribosomal subunit.

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

## Pharmacokinetics

**Half-life**: Doxycycline — 18-22 hours; Gefitinib — 48 hours.

## Chemical Properties

**Molecular Formula**: Doxycycline — C22H24N2O8; Gefitinib — C22H24ClFN4O3.

**Molecular Weight**: Doxycycline — 444.4350 g/mol; Gefitinib — 446.9000 g/mol.

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