the subject of the invention is a method for dry extract of plants of the family rosaceae, with black fruit raspberries rubus occidentalis or stems of raspberries rubus idaeus as proper chemical composition, which comprises the following steps: (i) the fragmentation of raw material from 0,5 mm d about 1 mm particle size, (ii) extraction by solvent, (iii) removal of the solvent.(iii) lyophilization extract. the subject of the invention is also described in the extract obtained according to the method, which can be used in pharmacy or in the food. the extract obtained from the dry fruit black raspberries rubus occidentalis described way contains anthocyanins at no less than 4000 mg per 100 g p. m, and sangwin u0119 h - 6 not less than 1000 mg per 100 g p. m.extract obtained from stems of the dry raspberries rubus idaeus, described the way contains, inter alia, sangwin u0119 h - 6 in quantities of not less than 1500 mg per 100 g z.the invention also includes pharmaceutical composition containing the extract as an active ingredient, showing the effect of anti-inflammatory and przeciwdrobnoustrojowy and applying the extract to produce medicines intended for use as adjunctive therapy in the treatment of diseases of the bed drobnoustrojowym and / or inflammation, especially infection grypopochodnych, including colds.preferably the extract applies internal.