Аннотация:This work introduces a new technique for copper-containing drugs encapsulation in a drug-delivery system. The drug, a promising copper compound, is embedded in lipid nanovesicles – tiny fat particles – for intravenous injection. In addition to chemical characterization of the obtained drug form, tests on cancer cells showed a noticeable effect, whereas healthy cell types were not harmed. Copper possesses not only anticancer effects but also antimicrobial properties, which are also shown by the drug form, and a test of combined suppression of cancer cell lines and bacteria was successful. Hence, the obtained drug form has the potential for dual treatment of cancer and bacterial infections.