Nasonex

List of products in the National Drug Code with proprietary name nasonex. Mometasone is used to prevent and treat seasonal and year-round allergy symptoms (such as stuffy/runny nose, itching, and sneezing). It is also used to treat certain growths in the nose (nasal polyps). Mometasone belongs to a class of drugs known as corticosteroids. It works by reducing swelling (inflammation) in the nasal passages.