Levamisole is a medication primarily used as an anthelmintic, which means it helps to treat parasitic worm infections in animals and humans. It works by interfering with the metabolism of the parasites, leading to their paralysis and eventual elimination from the body. In humans, it has also been used as an immunomodulator to enhance the immune response in certain conditions. In veterinary medicine, Levamisole is commonly administered to livestock to control infections caused by roundworms. It is available in various forms, including tablets and injectable solutions. While generally considered safe, it can cause side effects such as nausea and dizziness in some individuals.