The invention relates to application of totarol for production of a preparation for treatment of vaginal mucous membrane inflammations of bacterial origin, for alleviation of symptoms in such a treatment, and for prophylaxis and prevention of relapses of such inflammations. The invention includes also a pharmaceutical composition for treatment of vaginal mucous membrane inflammations of bacterial origin, for alleviation of symptoms in such a treatment and for prophylaxis and prevention of relapses of such inflammations, the composition containing from 75 to 95 parts by wt. of a cellulose derivative, from 0.5 to 5 parts by wt. of lactic acid, from 0.5 to 5 parts by wt. of a basic polymer, wherein the stoichiometric ratio of lactic acid to the basic polymer is comprised in the range of 1:1 to 8:1, and comprising totarol in an amount of 0.001 to 5 parts by wt. as the active substance.