The use of vitamins is not considered to have any environmental impact.
This summary information comes from Fass.
Fass environmental information for Vitalipid Adult (including phytomenadione) from Fresenius Kabi (downloaded 2022-06-17).
According to the European Medicines Agency guideline on environmental risk assessments for pharmaceuticals (EMA/CHMP/SWP/4447/00) vitamins, electrolytes, amino acids, peptides, proteins, carbohydrates, lipids proteins, vaccines and herbal medicinal products are exempted because they are unlikely to result in significant risk to the environment.
Author: Health and Medical Care Administration, Region Stockholm