Albendazole is an antiparasitic medication widely used in the treatment of a variety of parasitic worm infestations. It is particularly effective against infections caused by nematodes, such as _Ascaris lumbricoides_ (roundworm), _Enterobius vermicularis_ (pinworm), and _Trichuris trichiura_ (whipworm). It is also used for treating _Giardia_ infections and certain types of tapeworms.