Homomangiferin has important medicinal properties and is widely used to relieve many symptoms, for example coughing and asthma.Homomangiferin shows antitumoural effects against MDA-MB-231 cells.

Extracts showed protective properties against oxidation and cytotoxic effects against breast cancer cell lines, causing minor damage to non-carcinogenic cells. Nonetheless, some selective activity, depending on hormone receptor status, was observed. This was possibly related to the presence of minor compounds. Extracts with high levels of gallotannins showed cytotoxic action against MCF7 cells, while those which had methyl gallate and Homomangiferin as common components were more effective against MDA-MB-231 cells.