<p num="62">FIELD: medicine.</p> <p num="63">SUBSTANCE: invention relates to use of 5-methyl-7-(3-nitro-[1,2,4]triazol-1-yl)-[1,2,4]triazolo[1,5-<i>a</i>]pyrimidine of formula 1 as an anti-tuberculosis substance with activity on a multiple drug resistance agent.</p> <p num="64"> <img src="/get_item_image.asp?id=41362679&amp;img=00000017.jpg" class="img_big"> </p> <p num="65">EFFECT: disclosed is use of 5-methyl-7-(3-nitro-[1,2,4]triazol-1-yl)-[1,2,4]triazolo[1,5-<i>a</i>]pyrimidine for treating tuberculosis with multiple drug resistance.</p> <p num="66">1 cl, 5 dwg, 4 tbl, 4 ex</p>