Active ingredient description

Afatinib is a potent and selective, irreversible ErbB Family Blocker. Afatinib covalently binds to and irreversibly blocks signalling from all homo- and heterodimers formed by the ErbB family members EGFR (ErbB1), HER2 (ErbB2), ErbB3 and ErbB4.

Medicine classification

This medicinal substance has been classified in the anatomical therapeutic chemical (ATC) classification according to its main therapeutic use as follows:

ATC code
Group title
L Antineoplastic and immunomodulating agents → L01 Antineoplastic agents → L01E Protein kinase inhibitors → L01EB Epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors
Discover more medicines within L01EB03

Product monographs

Competent medicine agencies globally have authorized commercialization of this active ingredient according to these medication package inserts (MPIs):

Summary of Product Characteristics (SPC)

Structural formula

Graphic representation of the active ingredient's molecular structure

Chemical formula: C₂₄H₂₅ClFN₅O₃
Molecular mass: 485.938 g/mol

External identifiers

CAS Substance: 439081-18-2
CAS Substance: 850140-72-6
DrugBank Drug: DB08916
KEGG Drug: D09724
PubChem Compound: 10184653
RxNorm Ingredient: 1430438
SNOMED-CT Concept: 703579002
Afatinib (substance)
UNII Identifier: 41UD74L59M


Afatinib is an active ingredient of these brands:

United States (US)

Australia (AU)

Austria (AT)

Brazil (BR)

Canada (CA)

Cyprus (CY)

Ecuador (EC)

Estonia (EE)

Finland (FI)

France (FR)

Hong Kong (HK)

Ireland (IE)

Japan (JP)

Lithuania (LT)

Netherlands (NL)

New Zealand (NZ)

Poland (PL)

Romania (RO)

Singapore (SG)

Spain (ES)

Turkey (TR)

United Kingdom (UK)

While we strive to include the brand names of medicines across all countries, our index remains incomplete. Therefore, it is possible that this medicine may also be marketed under different names in other countries.