The use of carbohydrates is not considered to have any environmental impact.
This summary information comes from Fass.
Fass environmental information for Innohep (tinzaparin) from LEO Pharma (downloaded 2012-06-17).
"The active ingredient in Tinzaparin LEO® is tinzaparin sodium. Tinzaparin sodium is a polysulphated and acetylated glucosaminoglycane sodium salt (carbohydrate)."
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. "Therefore no environmental information is required."
Author: Health and Medical Care Administration, Region Stockholm