Gefitinib vs Levofloxacin

## Gefitinib vs Levofloxacin: Overview

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

## Mechanism of Action

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

**Levofloxacin**: Fluoroquinolone antibiotic inhibiting bacterial DNA gyrase and topoisomerase IV.

## Pharmacokinetics

**Half-life**: Gefitinib — 48 hours; Levofloxacin — 6-8 hours.

## Chemical Properties

**Molecular Formula**: Gefitinib — C22H24ClFN4O3; Levofloxacin — C18H20FN3O4.

**Molecular Weight**: Gefitinib — 446.9000 g/mol; Levofloxacin — 361.3680 g/mol.

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