Erlotinib vs Naproxen

## Erlotinib vs Naproxen: Overview

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

## Mechanism of Action

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

**Naproxen**: Non-selective COX inhibitor.

## Pharmacokinetics

**Half-life**: Erlotinib — 36 hours; Naproxen — 12-17 hours.

## Chemical Properties

**Molecular Formula**: Erlotinib — C22H23N3O4; Naproxen — C14H14O3.

**Molecular Weight**: Erlotinib — 393.4380 g/mol; Naproxen — 230.2590 g/mol.

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