INN Radical Book 2015

substances. In the case of INNs of salts and esters it is left to the user to devise their names

from the INN in conformity with normal chemical practice. Separate names for salts and

esters derived from this procedure are not published. The same approach should be

followed in the case of combination products. In all those situations, names are referred to

as International Nonproprietary Name Modified INNM.

Some of the radicals and groups involved are, however, of such complexity that, shorter

nonproprietary names are selected for these inactive moieties, and published in proposed

lists under the title "names for radicals and groups". If a "radical and group name" is used in

conjunction with an INN, it is also referred to as an INNM.

In some cases, a name of an INN Radical describes more than one substituent, e.g. (names in

Latin) acefuras, aceponas, enbutas, stinopras,… Alphabetical list of currently used names for

radicals and groups is given in the main part of the document, while the names of elements and

chemical groups that were published together with INNs are given in Annex 1.

For further details on the INNM, please refer to the INN Working Document 05.167/3

"International Nonproprietary Names Modified" which can be downloaded from the INN

Programme website.