# inn

## INN

**This is an abbreviation for International Nonproprietary Names.**

## International Nonproprietary Names

An internationally recognized nomenclature of unique names for pharmaceutical substances and active pharmaceutical ingredients maintained by the World Health Organization.

#### Notes

* 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.
* International Nonproprietary Names (INN) are also known as generic names.

## Alternative

* **INN**

## Related Links

* [International Nonproprietary Names](http://www.who.int/medicines/services/inn/en/)

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