Yes, you can take zinc, vitamin C, vitamin D and omega-3 along with Neoparin 0.8 (low molecular weight heparin) as they should not interact with or affect the effects of heparin. These supplements are often used to support the immune system, especially during the common cold.

However, it's a good idea to be cautious with omega-3 supplements, as they may slightly increase the risk of bleeding in high doses, especially in people taking anticoagulants. It is best to consult with your doctor to make sure the dosage is appropriate.

If you need more personalized advice, you can use teleconsultations here:

https://www.gdziepolek.pl/telekonsultacja/

Through Gdziepolek, it is possible to book medicines in a selected pharmacy:

https://www.gdziepolek.pl/produkty/92384/neoparin-iniekcja/apteki