Note: This document contains side effect information about mometasone nasal. Some dosage forms listed on this page may not apply to the brand name Nasonex 24HR Allergy.
Applies to mometasone nasal: nasal implant, nasal spray.
Serious side effects
Along with its needed effects, mometasone nasal (the active ingredient contained in Nasonex 24HR Allergy) may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.
Check with your doctor immediately if any of the following side effects occur while taking mometasone nasal:
More common
- Bloody mucus or unexplained nosebleeds
- chills
- cold
- cough
- fever
- headache
- hoarseness
- increased abdominal or stomach pain and cramping during menstrual periods
- muscle or bone pain
- stuffy or runny nose
Less common
- Chest pain
- discharge or redness in the eye, eyelid, or inner lining of the eyelid
- earache
- tightness in the chest
- troubled breathing
Rare
- Sores inside the nose
- white patches inside the nose or mouth
Incidence not known
- Blurred vision
- difficulty with swallowing
- dizziness
- fast heartbeat
- hives, skin rash
- itching, puffiness, or swelling of the eyelids or around the eyes, face, lips, or tongue
- large, hive-like swelling on the face, eyelids, lips, tongue, throat, hands, legs, feet, or genitals
- unusual tiredness or weakness
Other side effects
Some side effects of mometasone nasal may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects.
Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:
More common
- Sore throat
Less common
- Diarrhea
- joint or muscle ache or pain
- nasal burning or irritation
- nausea
- sneezing
- stomach upset or discomfort following meals
Incidence not known
- Bad, unusual, or unpleasant (after) taste or smell
- change in taste or smell
For Healthcare Professionals
Applies to mometasone nasal: nasal implant, nasal spray.
General
The most commonly reported side effects were headache, viral infection, pharyngitis, epistaxis, and cough.[Ref]
Nervous system
Very common (10% or more): Headache (26%)[Ref]
Endocrine
Frequency not reported: Hypothalamic-pituitary-adrenal (HPA) axis effects including growth reduction[Ref]
Gastrointestinal
Common (1% to 10%): Throat irritation, diarrhea, nausea, abdominal pain, dyspepsia
Frequency not reported: Disturbances of taste and smell[Ref]
Hypersensitivity
Frequency not reported: Hypersensitivity (including anaphylactic reactions, angioedema, bronchospasm, dyspnea)[Ref]
Immunologic
Very common (10% or more): Viral infection (14%)
Frequency not reported: Candida albicans infection, immunosuppression[Ref]
Other
Common (1% to 10%): Earache, otitis media
Frequency not reported: Impaired wound healing[Ref]
Genitourinary
Common (1% to 10%): Dysmenorrhea[Ref]
Musculoskeletal
Common (1% to 10%): Musculoskeletal pain, arthralgia, myalgia[Ref]
Ocular
Common (1% to 10%): Conjunctivitis
Frequency not reported: Glaucoma, increased intraocular pressure, cataract[Ref]
Respiratory
Very common (10% or more): Epistaxis (up to 15%), pharyngitis (12%)
Common (1% to 10%): Upper respiratory tract infection, nasal burning, nasal irritation, nasal ulceration, sneezing, coughing, sinusitis, asthma, bronchitis, influenza-like symptoms, rhinitis
Frequency not reported: Nasal septum perforation[Ref]
Cardiovascular
Common (1% to 10%): Chest pain[Ref]
