Can I take tadalfil just to masturbate?

If you are asking about the use of tadalafil occasionally "on your own", without a diagnosis of erectile dysfunction, it is worth considering whether it is actually necessary, as any drug can cause side effects (e.g. headache, facial flushing, heartburn, dizziness).

You can take Tadalafil regardless of whether sexual activity involves intercourse with your partner or masturbation. The drug acts on the erection mechanism and does not matter the type of sexual activity.

However, it is worth remembering that Tadalafil does not induce an erection on its own — sexual arousal is needed. Also, do not exceed the recommended dose or frequency of use. Tadalafil must not be combined with nitrates (medicines used for coronary artery disease, for m.in example), as this may cause a dangerous drop in blood pressure.
Caution is indicated for certain heart diseases, low blood pressure and taking some medications for hypertension.

If you need more personalized advice, you can use the teleconsultation here: https://www.gdziepolek.pl/telekonsultacja/

You can check the availability of Tadalafil in pharmacies in Polish at the following address:

https://www.gdziepolek.pl/produkty/91046/tadalafil-teva-tabletki-powlekane/apteki