Mebendazole Tablet (Vermox) is used to treat roundworm and whipworm infections. Mebendazole (Emverm) is used to treat pinworm, whipworm, roundworm, and hookworm infections. Mebendazole is in a class of medications called anthelmintics. It works by killing the worms.It prevents newly hatched insect larvae worms from growing multiplying in your body, used to treat infections caused by such as whipworm, pinworm, roundworm and hookworm also more than one of these at the same time.