FIELD: medicine, pharmacy. SUBSTANCE: invention relates to a pharmaceutical composition used for treatment of Parkinson's disease and Parkinson's syndromes. Pharmaceutical composition contains in pharmaceutically acceptable medium at least rilusol or at least one of its pharmaceutically acceptable salts. Invention relates also to method for preparing such composition and to method for treatment of Parkinson's disease and Parkinson's syndromes that involves administration to patient the indicated composition. Invention provides expansion of medicinal agents used for treatment of Parkinson's disease and Parkinson's syndromes. EFFECT: enhanced effectiveness of treatment, valuable medicinal properties of composition. 22 cl, 1 tbl
