| Nominative | Accusative | Dative | Genitive |
| No Article |
Somatotropin |
Somatotropin |
Somatotropin/Somatotropine |
Somatotropines/Somatotropins |
| |
| Definite Article |
das Somatotropin |
das Somatotropin |
dem Somatotropin/Somatotropine |
des Somatotropines/Somatotropins |
| |
| Indefinite Article |
ein Somatotropin |
ein Somatotropin |
einem Somatotropin/Somatotropine |
eines Somatotropines/Somatotropins |
| |
Plural
No Article |
Somatotropins |
Somatotropins |
Somatotropins |
Somatotropins |
| |
Plural
Definite Article |
die Somatotropins |
die Somatotropins |
den Somatotropins |
der Somatotropins |
