There are 15 words that end with 'nogens'.
| ionogens | cyanogens |
| mucinogens | immunogens |
| carcinogens | fibrinogens |
| pepsinogens | plasminogens |
| trypsinogens | agglutinogens |
| cocarcinogens | hallucinogens |
| noncarcinogens | anticarcinogens |
| precipitinogens | |
Note: These 15 words that end with 'nogens' are found from the USA & Canada version of the tournament Scrabble word list.