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Also known as vermifuge, vermicide, Antihelmintics, Vermifuges, anthelmintics, vermicides

thumb|Anthelmintic effect of papain on [[Heligmosomoides bakeri]] Anthelmintics, anthelminthics, antihelmintics or antihelminthics are a group of antiparasitic drugs that expel parasitic worms (helminths) and other internal parasites from the body by either stunning or killing them without causing significant damage to the host. They may also be called vermifuges (those that stun) or vermicides (those that kill). Anthelmintics are used to treat people who are infected by helminths, a condition called helminthiasis. These drugs are used to treat infected animals, particularly small ruminants su