FIELD: organic chemistry, medicine, endocrinology. SUBSTANCE: invention relates to 5-[4-(6-methoxy- 1-methyl-1H-benzimidazole-2-ylmethoxy)benzyl]-thiazolidine-2,4-dione hydrochloride. The medicinal agent eliciting hypoglycemic activity contains the claimed compound as an active component and usual addition. Invention relates also to method for prophylaxis or treatment of hyperglycemia, diabetes mellitus and reduced tolerance to glucose in mammal by administration of 5-[4-(6-methoxy-1-methyl-1H- benzimidazole-2-ylmethoxy)benzyl[-thiazolidine-2,4-dione hydrochloride in effective dose. Invention relates also to method for improvement of states in insulin resistance in mammals by administration of the claimed agent in effective dose. Invention provides preparing the novel compound eliciting hypoglycemic activity. EFFECT: valuable medicinal property of compound. 14 cl, 2 tbl, 2 dwg, 2 ex
