MONASAL Nasal Spray contains mometasone furoate, one of a group of medicines called corticosteroids. When mometasone furoate is sprayed into the nose, it can help to relieve inflammation (swelling and irritation of the nose), sneezing, itching and a blocked up or runny nose. Mometasone furoate should not be confused with "anabolic" steroids misused by some athletes and taken as tablets or injections.