Afatinib vs Baricitinib

## Afatinib vs Baricitinib: Overview

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

## Mechanism of Action

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

**Baricitinib**: Selective JAK1 and JAK2 inhibitor blocking cytokine signaling involved in inflammation.

## Pharmacokinetics

**Half-life**: Afatinib — 37 hours; Baricitinib — 12 hours.

## Chemical Properties

**Molecular Formula**: Afatinib — C24H25ClFN5O3; Baricitinib — C16H17N7O2S.

**Molecular Weight**: Afatinib — 485.9400 g/mol; Baricitinib — 371.4170 g/mol.

**Type**: Afatinib — Small molecule; Baricitinib — Small molecule.