Niclosamide is a medication primarily used to treat infections caused by tapeworms. It works by disrupting the energy production in the parasites, effectively killing them and allowing the body to eliminate them. This makes it an important drug in the field of parasitology, especially for those suffering from intestinal worm infections. In addition to its use against parasites, Niclosamide has gained attention for its potential applications in treating other conditions, including certain types of cancer and viral infections. Researchers are exploring how it might inhibit the growth of cancer cells and even combat viruses like COVID-19, showcasing its versatility beyond just treating parasitic infections.