Afatinib vs Rituximab

## Afatinib vs Rituximab: Overview

This comparison examines the pharmacological differences between **Afatinib** and **Rituximab**.

## Mechanism of Action

**Afatinib**: Irreversible covalent inhibitor of ErbB family (EGFR/HER1, HER2, HER4) tyrosine kinases.

**Rituximab**: Chimeric anti-CD20 IgG1 monoclonal antibody inducing B-cell depletion via CDC, ADCC, and apoptosis.

## Pharmacokinetics

**Half-life**: Afatinib — 37 hours; Rituximab — 22 days.

## Chemical Properties

**Molecular Formula**: Afatinib — C24H25ClFN5O3; Rituximab — N/A.

**Molecular Weight**: Afatinib — 485.9400 g/mol; Rituximab — N/A.

**Type**: Afatinib — Small molecule; Rituximab — Antibody.