FIELD: medicine, chemical-pharmaceutical industry, pharmacy. SUBSTANCE: invention relates to composite used for injections based on mannitol. Method involves dissolving mannitol and sodium chloride in water for injection followed by UV-irradiation at wavelength from 180 nm to 350 nm at temperature 5-50 C for 2-30 min. Method provides elevation of rate and degree of mannitol dissolving and preparing the preparation of high purification degree. EFFECT: improved preparing method. 1 tbl, 3 ex
