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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.

Site announcements

The 59th Meeting of the WHO International Working Group for Drug Statistics Methodology will be held in Geneva on April 28-29, 2026.

The deadline for submissions is Friday, March 6^th 2026 (for new requests, alterations and objections) .

Submitting ATC-DDD Requests Online is mandatory, Please Click Here to submit.

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The 82^nd Consultation on International Nonproprietary Names (INN) for Pharmaceutical Substances will be on April 21-24 2026.

Deadlines for submissions:
New INN requests
Friday, 13^th February 2026.
Early submissions are encouraged and welcome.

Outstanding INN requests
Friday, 20^th February 2026.

SUBMITTING INN REQUESTS ONLINE IS MANDATORY, please click here...
The deadline for submissions of additional information of outstanding INN requests is: Friday, 20^th February 2026.

INN Session with INN stakeholders (on 21^st April 2026):
Mandatory deadline for EoI, LoP and presentations 20^th March 2026

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Dear SoINN members,

We are pleased to announce a new INN mednet Service.
All the INN MedNet user wil be able to access and search sequences for monoclonal antibodies (mAb) having an INN name using the new INN Open Database for Proteins (INN ODP).
We welcome any comments, which can be sent to innprogramme@who.int.

WHO INN Programme Secretariat

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