Mebendazole is a broad-spectrum anthelmintic medication belonging to the benzimidazole class, primarily used to treat intestinal worm infestations such as roundworm, hookworm, whipworm, and pinworm infections. It functions by inhibiting the formation of microtubules within the intestinal cells of parasites, preventing glucose uptake and causing energy depletion, leading to the immobilization and death of the worms. Poorly absorbed from the gastrointestinal tract, mebendazole’s action is largely confined to the intestines, making it effective for digestive tract infestations with minimal systemic activity.