| bokmål | nob-000 |
| metadon | |
| dansk | dan-000 | metadon |
| Deutsch | deu-000 | Methadon |
| ελληνικά | ell-000 | μεθαδονη |
| English | eng-000 | methadone |
| suomi | fin-000 | metadoni |
| français | fra-000 | méthadone |
| italiano | ita-000 | metadone |
| Nederlands | nld-000 | methadon |
| português | por-000 | metadona |
| español | spa-000 | metadona |
| svenska | swe-000 | metadon |