Afatinib vs Paroxetine

## Afatinib vs Paroxetine: Overview

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

## Mechanism of Action

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

**Paroxetine**: Potent selective serotonin reuptake inhibitor with additional muscarinic and NE reuptake inhibition.

## Pharmacokinetics

**Half-life**: Afatinib — 37 hours; Paroxetine — 21 hours.

## Chemical Properties

**Molecular Formula**: Afatinib — C24H25ClFN5O3; Paroxetine — C19H20FNO3.

**Molecular Weight**: Afatinib — 485.9400 g/mol; Paroxetine — 329.3730 g/mol.

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