Mebendazole 100 mg is a widely used antiparasitic medicine prescribed to treat intestinal worm infections in humans. It works by stopping worms from absorbing sugar, which they need to survive. As a result, the parasites lose energy, become weak, and are naturally eliminated from the body. Mebendazole 100 mg is commonly used to treat infections such as roundworms, hookworms, pinworms , and whipworms.