Essential medicines and health products

International Nonproprietary Names

Guidance on the use of International Nonproprietary Names (INNs) for pharmaceutical substances (2017)


International Nonproprietary Names (INN) facilitate the identification of pharmaceutical substances or active pharmaceutical ingredients. Each INN is a unique name that is globally recognized and is public property. A nonproprietary name is also known as a generic name.


WHO has a constitutional mandate to "develop, establish and promote international standards with respect to biological, pharmaceutical and similar products".

The World Health Organization collaborates closely with INN experts and national nomenclature committees to select a single name of worldwide acceptability for each active substance that is to be marketed as a pharmaceutical. To avoid confusion, which could jeopardize the safety of patients, trade-marks should neither be derived from INNs nor contain common stems used in INNs. The selection and publication of INNs falls under the responsibility of the EMP/RHT/TSN team of the INN Programme.


Requesting an INN

Selection process of INNs
To apply for a new INN, please use the online application form
To select an appropriate stem

Published INN Lists

INN and Biologicals

All INN publications

Online access to INN data

Promotion of INN and collaborations



For information on INN, please contact the

Dr R. Balocco Mattavelli
World Health Organization
1211 Geneva 27
Fax: +41 22 791 4856/5853

LATEST 66顺彩票app

70th INN consultation

The 70th Consultation on International Nonproprietary Names (INN) for Pharmaceutical Substances will take place from:
21-24 April 2020.

Deadlines for submissions:
New INN requests
Friday, 7th February 2020.

Early submissions are encouraged and welcome.
Outstanding INN requests
Friday, 31st January 2020.

Countdown requests for 70th INN Consultation : 0 request available!

The counter for new requests will start on January 7th 2020.

66顺彩票app course on INN (to be confirmed)

Deadline for Expression of Interest (EOI) to be confirmed

INN Session with INN stakeholders -BY WEBEX ONLY-(on 21st April 2020)

Deadline for Expression of Interest (EOI), LoP and presentations on 13th March 2020

INN publications

School of INN

Contact information
World Health Organization
International Nonproprietary Names
20 Avenue Appia
1211, Geneva 27
Tel: +41 22 791 1249
Fax: +41 22 791 4730

963彩票开户 677彩票开户 7072彩票开户 66顺彩票总代理 7073彩票地址 689彩票邀请码 7073彩票网址 7073彩票登录 8炫彩彩票app 9188彩票代理