Ciprofloxacin vs Erlotinib

## Ciprofloxacin vs Erlotinib: Overview

This comparison examines the pharmacological differences between **Ciprofloxacin** and **Erlotinib**.

## Mechanism of Action

**Ciprofloxacin**: Inhibits bacterial DNA gyrase and topoisomerase IV.

**Erlotinib**: Reversible inhibitor of EGFR (HER1) tyrosine kinase, blocking autophosphorylation.

## Pharmacokinetics

**Half-life**: Ciprofloxacin — 4 hours; Erlotinib — 36 hours.

## Chemical Properties

**Molecular Formula**: Ciprofloxacin — C17H18FN3O3; Erlotinib — C22H23N3O4.

**Molecular Weight**: Ciprofloxacin — 331.3460 g/mol; Erlotinib — 393.4380 g/mol.

**Type**: Ciprofloxacin — Small molecule; Erlotinib — Small molecule.