It has been shown in rats with experimental hepatitis that sodium selenite and vegetable polyphenol complexes of Malus Pallasiana Juz., Schabiosa comosa F ex. R. et Sch., Odontites serotina Dum., Gentiana barbata Froel, have antioxidant action. Experiments on rabbits and rats have demonstrated the pathogenetic importance of activation of free-radical lipid oxidation during ischemic and toxic injuries to the liver and biliferous ducts.