Health products policy and standards
Our team provides authoritative guidance and standards on quality, safety and efficacy of health products and supports countries to formulate evidence-based policies and ensure good practice throughout the value chain.

INN online application

Dear INN Stakeholders,
In order for the INN name selection process to run smoothly, due to massive INN request submissions close to the deadline, the INN Experts proposed to limit the number of requests that will be accepted during the last month before the deadline. For this reason after the 11th June 2025 only the first 30 new requests regularly completed and submitted will be accepted for discussion during the next 81st INN consultation. A counter will appear on the INN web site to show the number of requests still available. This procedure is aimed to strongly encourage early submissions and to give sufficient time to the Secretariat and the INN Expert Group to review properly the INN requests.
Thank you for your understanding,

INN Programme Secretariat 

Countdown requests for 81st INN Consultation 

10 requests available!

The counter for new requests will start on June 11th 2025.


 

Mandatory additional information for biologicals:

INN Nomenclature Schema Icon

Mandatory information for INN selection and publication for cell-based therapies including cell-based gene therapy substances.(Please note that incomplete...

INN Nomenclature Schema Icon

  Any change to the structure of a medicinal active substance will trigger a requirement for a new INN to be assigned. To highlight the close...

INN Nomenclature Schema Icon

-tug for “unmodified immunoglobulins”The suffix -tug is used for monospecific full-length immunoglobulins with unmodified constant...

INN Nomenclature Schema Icon

Mandatory information for INN selection and publication for nucleic-acid based substances including gene therapy substancesAnnex to INN application form(Please...

INN Nomenclature Schema Icon

Mandatory information for INN selection and publication for all proteins (including monoclonal antibodies):Annex to INN application form(Please note that...

INN Nomenclature Schema Icon

The -fusp naming scheme is not designed to give comprehensive information about the substance in the name, but rather to indicate that it is a fusion protein...

Enquiries

For information on INN, please contact the innprogramme@who.int

Dr R. Balocco Mattavelli

World Health Organization
International Nonproprietary Names
(INN/HPS/MHP)
20 Avenue Appia
1211, Geneva 27
Switzerland
Tel: +41 22 791 1249
Fax: +41 22 791 4856/5853