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Anthelmintic (anthelmintic) means

Anti-worm effect has a number of natural and synthetic substances. For a long time, the products of plant origin were mainly used as anthelmintics: man's fern extract, cinnamon wormwood and santonin extracted from it, chenopodium oil, etc. Recently, new synthetic preparations have been developed that have a high antihelminth activity and are safer than those previously used. In this regard, a number of old drugs (chenopodia oil, santonin, male fern extract, carbon tetrachloride, hexylresorcinol, etc.) is excluded from the nomenclature of medicines, and some obsolete preparations (thymol, sulfur, wormwood, pumpkin seeds, tansy flowers) use Very limited.
Modern antihelminthic drugs are divided into groups according to their primary effect on different classes of helminths (antinematous, antiparasidic, antitremidoznye). However, it should be borne in mind that some drugs are effective simultaneously for helminths of different groups.
There is also a special group of drugs used for extraintestinal helminthiases (chloroxyl, ditrazine, etc.).
According to the chemical structure, synthetic antihelminthic agents belong to various groups of compounds: ethanolamine derivatives (naphthamone, diphezil, etc.), benzimidazole derivatives (mebendazole, medamin, etc.), imidazothiazole (levamisole), salicylamide (phenasal, etc.), piperazine salts and Etc. Recently a new group of highly effective anthelmintics has been discovered - pyrazinoisoquinoline derivatives (prazikvantel, etc.).
Applying various antihelminthic drugs, it is necessary to take into account their specific activity, effectiveness, tolerance, concomitant factors (immunological status of the organism, etc.). (See also Levamisol, Akrihin, Oxygen).