FIELD : medicine.SUBSTANCE : invention relates to medicine, namely to phthisiology, and concerns the effects on Mycobacterium tuberculosis. For the purpose in an in vitro experiment use electrochemically produced silver water on “Krasniy Kluch” still mineral water with an ionic concentration of silver of 15?%. With the help of this water, a pure culture of Mycobacterium tuberculosis isolated from the sputum of patients with pulmonary tuberculosis is treated.EFFECT : with this treatment, the growth of mycobacteria is observed only in 5?% of cases.1 cl, 3 tbl