Silver colloidal as an antiseptic and antibiotic is effective for health and pharmaceutical purposes and safe for use only by the correct preparation procedure. Particle stability in colloidal silver and appropriate particle size are important. The use of colloidal silver and its preparation process solves the problem of medicines that are not designed to use natural, certified active substances to treat infectious diseases, including and not limited to the diseases and conditions caused by Covid19.Koloidno srebro kot že znan antiseptik in antibiotik je učinkovit v zdravstvene in farmacevtske namene ter varen za uporabo samo z pravilnim postopkom priprave. Pomembna je stabilnost delcev v koloidnem srebru in primerna velikost delcev. Uporaba koloidnega srebra in postopek njegove priprave rešuje problem zdravil, ki niso zasnovana z uporabo naravnih, certificiranih zdravilnih učinkovin, za zdravljenje infekcijskih bolezni, vključno in ne omejeno na bolezni in stanja, ki jih povzroča virus Covid19.