Afatinib vs Cephalexin

## Afatinib vs Cephalexin: Overview

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

## Mechanism of Action

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

**Cephalexin**: First-generation cephalosporin inhibiting cell wall synthesis.

## Pharmacokinetics

**Half-life**: Afatinib — 37 hours; Cephalexin — 0.5-1.2 hours.

## Chemical Properties

**Molecular Formula**: Afatinib — C24H25ClFN5O3; Cephalexin — C16H17N3O4S.

**Molecular Weight**: Afatinib — 485.9400 g/mol; Cephalexin — 347.3890 g/mol.

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