The attention is focused on the main classes of anthelmintics. Mode of action of the anthelmintics and the anthelmintic resistance, and alternative methods for dehelminthization are discussed. A targeted search for new anthelmintic substances in the series of speculative parental hydrocarbons (benzene, indene, naphthalene, 1 H1-cyclopenta [a]-naphthalene and phenanthrene) is suggested to be pro...