Anthelmintics or antihelminthics are drugs that expel parasitic worms (helminths) from the body, by either stunning or killing them. They may also be called vermifuges (stunning) or vermicides (killing). Pharmaceutical classes Examples of pharmaceuticals used as anthelmintics include: Abamectin – effective against most common intestinal worms, except tapeworms, for which Praziquantel's commonly used in conjunction with abamectin Albendazole – effective against threadworms, roundwor… (More on Antihelmintic)