The invention relates to the pharmaceutical industry and to medicine, and more particularly to complex polyionic infusion solutions that have a detoxifying effect as a result of antihypoxic, antioxidant and hepatoprotective properties. A preparation can be used to treat intoxications of various origins. The present polyionic infusion solution comprises chlorides of sodium, potassium and magnesium, meglumine sodium succinate as a biologically active component, and water for injection, and also a stabilising agent which is a pharmaceutically acceptable carboxylic acid or inorganic acid or a combination thereof, wherein the solution has a pH from 7.0 to 5.5.