Fenbendazole is a benzimidazole that presents a wide spectrum anthelmintic effect. It is used against a number of gastrointestinal parasites including giardia, roundworms, hookworms, whipworms, the Taenia genus of tapeworms, pinworms, aelurostrongylus, paragonimiasis, strongyles, and Strongyloides.

Ivermectin is used to treat river blindness (onchocerciasis), intestinal infection from threadworms (strongyloidiasis), and other kinds of worm infections. Ivermectin is an anthelmintic. It works by interfering with the nerve and muscle functions of worms, by paralyzing and killing them.

Mebendazole is an antiparasitic medication that treats infections of worms, like pinworm, or other parasites. Pinworms, also called threadworms, live in the intestines and rectums of infected people. It causes anal itching and sleeplessness.