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	Available in French, Spanish and Arabic as well, you just change the language on the top or select the "category" on the bottom
	The School of INN is a WHO International Nonproprietary Name Programme initiative. Its role is to educate the pharmaceutical and medical students, as well as all other INN stakeholders on how to design and construct an INN. It also provides information to healthcare professionals and patients on how to interpret an INN. The school fosters the science of nomenclature and helps to cultivate a future generation of INN experts.

Available in French, Spanish and Arabic as well, you just change the language on the top or select the "category" on the bottom

The School of INN is a WHO International Nonproprietary Name Programme initiative.
Its role is to educate the pharmaceutical and medical students, as well as all other INN stakeholders on how to design and construct an INN. It also provides information to healthcare professionals and patients on how to interpret an INN. The school fosters the science of nomenclature and helps to cultivate a future generation of INN experts.

MedNet INN services
The WHO MedNet offers on-line information services related to INNs which are free of charge to its members.
As a Member of MedNet INN, you will be able to search the INN database for INN names, for names published on recommended or proposed lists, and display the equivalent of the Latin INN name in Arabic, Chinese, English, French, Spanish and Russian. You will also be informed about any existing national names, ATC codes if assigned to INNs and the basic chemical information. The INN Status query allows for tracking the status of INNs within the INN process.

The "How to.." session offers on-line information on how to access and use INN service like the advance search tool, the INN online application and others.

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Site announcements

The 80^th Consultation on International Nonproprietary Names (INN) for Pharmaceutical Substances will be on March 18-21 2025.

Deadlines for submissions:
New INN requests
Monday, 6^th January 2025.
Early submissions are encouraged and welcome.

Outstanding INN requests
Monday, 13^th January 2025.

SUBMITTING INN REQUESTS ONLINE IS MANDATORY, please click here...
The deadline for submissions of additional information of outstanding INN requests is: Monday, 13^th January 2025.

INN Session with INN stakeholders (on 18^th March 2025):
Mandatory deadline for EoI, LoP and presentations 3^rd February 2025

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Dear SoINN members,

The "New INN monoclonal antibody (mAb) nomenclature scheme" has been updated (see link below)

https://www.who.int/publications/i/item/inn-22-542

Kind regards,
WHO INN Programme

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The INN Expert Group has adopted a nomenclature for COVID-19 vaccine substances dedicated to SARS-CoV-2 variants of concern (VOCs). The WHO INN Programme encourages vaccine developers to submit INN requests for COVID-19 vaccine substances including those directed against SARS-CoV-2 VOCs and urges regulatory authorities to facilitate their implementation. Please consult the corresponding document titled “International Nonproprietary Names for Variant COVID-19 Vaccine Active Substances” for further details.

https://www.who.int/publications/i/item/inn-21-520

Dr Raffaella Balocco Mattavelli
Unit Head, International Nonproprietary Names Programme (INN) and Classification of Medical Products
INN/HPS/MHP
World Health Organization
Geneva, Switzerland

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Site announcements

80th Consultation on International Nonproprietary Names (INN) for Pharmaceutical Substances

New INN monoclonal antibody (mAb) nomenclature scheme (update)

International Nonproprietary Names for Variant COVID-19 Vaccine Active Substances