Azathioprine vs Erlotinib

## Azathioprine vs Erlotinib: Overview

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

## Mechanism of Action

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

## Pharmacokinetics

**Half-life**: Azathioprine — N/A; Erlotinib — 36 hours.

## Chemical Properties

**Molecular Formula**: Azathioprine — N/A; Erlotinib — C22H23N3O4.

**Molecular Weight**: Azathioprine — N/A; Erlotinib — 393.4380 g/mol.

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