thisdrug what a medicine's name tells you

WHO naming stem · anywhere in the name · 14 listed names

retin

retinol derivatives

WHO's definition, quoted as written in the 2024 stem book
Names only. This page is about retin as a part of a name. It has nothing on uses, doses, side effects or interactions of any medicine that carries it, and nothing here is medical advice. Ask a pharmacist or doctor about the medicine itself.

Where it sits in a name

WHO writes the stem as retin, without hyphens, which means it can sit anywhere in a name. So the letters retin sit anywhere in the name (retin).

All 14 names WHO lists under retin

These are the INN in group (a) of Part IV of the stem book: names in which WHO says the stem is used as defined. The stem is marked where WHO places it. A-Z as WHO lists them.

  1. acitretin
  2. alitretinoin
  3. doretinel
  4. etretin
  5. etretinate
  6. fenretinide
  7. isotretinoin
  8. motretinide
  9. pelretin
  10. peretinoin
  11. retinol
  12. tretinoin
  13. tretinoin tocoferil
  14. zuretinol acetate

Decode another name

Decoded

etretin

Listed INNCarries the WHO stem retin

  • retinend of the nameWHO lists it hereWHO definition: retinol derivatives

“etretin” is an INN that WHO lists under retin in the 2024 stem book.

The same decoder as the front page: it reads the letters of a name against all 482 WHO stems, in your browser.

Source and licence

The definition of retin (Part II B) and the 14 names (Part IV, group (a)) are from Use of stems in the selection of International Nonproprietary Names (INN) for pharmaceutical substances, 2024 (World Health Organization, Stem book 2024 (ISBN 978-92-4-009938-8); covers proposed INN Lists 1-129). Checked .

Adapted from: Use of stems in the selection of International Nonproprietary Names (INN) for pharmaceutical substances, 2024. Geneva: World Health Organization; 2024. Licence: CC BY-NC-SA 3.0 IGO. This adaptation was not created by WHO; WHO is not responsible for its content or accuracy and does not endorse this site. The data file stems.json is shared under the same licence.