INN Stem Book Addendum 202410-2024

Addendum to "The use of stems in the selection of International Nonproprietary Names (INN) for pharmaceutical substances, 2024" ISBN 9-789240-099388

29 January 2025

| Publication

The document "The Use of Common Stems in the Selection of INNs" is intended primarily for persons and

companies applying to the WHO INN Programme for the selection of an INN for a new pharmaceutical substance

and has been designed to assist in the process of devising a suitable proposal. It will also be of assistance to

institutions and specialists involved in the review of proposed INNs, including drug regulatory authorities,

pharmaceutical manufacturers, patent offices and trade mark officers as well as for scientists, teachers, health

professionals and other persons interested generally in drug nomenclature.

WHO Team

INN and Classification of Medical Products (INN)

Editors

International Nonproprietary Name (INN) Programme

Number of pages

Reference numbers

WHO Reference Number: INN Working Document 24.604