According to the National Institutes of Health, Nasonex, generic name mometasone, is a nasal inhalation drug used to treat and prevent nasal symptoms such as congestion, runny nose, sneezing and itchy nose caused by allergies. Nasonex belongs to a class of medications called topical steroids and works by reducing inflammation in the nasal passages. Nasonex is available as a spray that is inhaled through the nose. Nasonex is usually sprayed once a day into each nostril; it has several side effects.
Common Side Effects
According to Drugs.com, patients who take Nasonex may experience common side effects such as stuffy nose, sore throat, cough, headache, muscle pain, joint pain, nausea, vomiting and sores or white patches inside the nose. These side effects go away with continued treatment. However, patients who experience worsening of symptoms should inform their doctors.
Immunologic Effects
According to Drugs.com, Nasonex is a steroid, which may lower the number of white blood cells in the blood. White blood cells protect the body from infections, and lack of the cells could lead to infections. Nasonex and other steroids suppress the immune system and people taking these drugs should avoid close contact with those who have tuberculosis, chicken pox, measles and other communicable diseases.
Respiratory Effects
According to Drugs.com, Nasonex may cause harm to the nose, sinuses and the respiratory tract. Nasonex may cause nasal perforation and growth of fungus in the nose, nasal burning and irritation. It is important for patients to have regular checkups to assess the condition of their noses. Nasonex may also cause inflammation of the sinuses, coughing, asthma and bronchitis.
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