The drugs you mentioned in your question, namely Sulfasalazine, Linefor, Biofenac and Saxenda, should not directly cause false results in a breathalyzer test.

The result of a breathalyzer test can be falsified, m.in by spraying perfume shortly before the test, outdated hardware software, poor battery health in the device, or when there are debris inside the mouthpiece.

It can also be the result of a fungal infection, but confirmation of this requires in-depth diagnostics under the supervision of a specialist.

Please also note that some medications, such as Linefor, may cause side effects that may be similar to those of intoxication, such as dizziness, confusion or weakness. In this case, you should also avoid driving or performing other activities that require increased psychomotor activity.

If you experience effects similar to those of intoxication after taking your medication, it is important to tell your doctor. If you do not have the opportunity to consult your doctor, you can use the teleconsultation here:
https://www.gdziepolek.pl/telekonsultacja

Through the gdziepolek.pl website, you can check the availability of the listed medicines and book them at the pharmacy of your choice: Sulfasalazine: https://www.gdziepolek.pl/produkty/75356/sulfasalazin-en-krka-tabletki/apteki

Linefor: https://www.gdziepolek.pl/produkty/96118/linefor-kapsulki/apteki

Biofenac: https://www.gdziepolek.pl/produkty/11428/biofenac-tabletki-powlekane/apteki

Saxenda:https://www.gdziepolek.pl/produkty/88452/saxenda-iniekcja/apteki

We also encourage you to familiarize yourself with materials on similar topics:

https://www.gdziepolek.pl/artykuly/po-jakich-lekach-nie-mozna-prowadzic-samochodu