Can I take chlorella with heparegen?

Yes, you can. The preparations mentioned in the question do not interact with each other clinically relevant, which would preclude their combined use. However, it is always a good idea to consult your doctor before starting any dietary supplement, including chlorella. Chlorella is usually well tolerated, but some people may experience gastrointestinal symptoms such as diarrhea, bloating or nausea. There are also anecdotal reports of allergic reactions to chlorella in some people. I enclose materials that may be interesting and information about the possibility of using teleconsultation: https://www.gdziepolek.pl/telekonsultacja https://www.gdziepolek.pl/artykuly/co-szkodzi-watrobie