Asmanex Twisthaler Side Effects

Generic Name: mometasone

Note: This page contains information about the side effects of mometasone. Some of the dosage forms included on this document may not apply to the brand name Asmanex Twisthaler.

Not all side effects for Asmanex Twisthaler may be reported. You should always consult a doctor or healthcare professional for medical advice. Side effects can be reported to the FDA here.

For the Consumer

Applies to mometasone: inhalation aerosol powder, inhalation powder

In addition to its needed effects, some unwanted effects may be caused by mometasone (the active ingredient contained in Asmanex Twisthaler). In the event that any of these side effects do occur, they may require medical attention.

You should check with your doctor immediately if any of these side effects occur when taking mometasone:

More common
  • Body aches or pain
  • cold or flu-like symptoms
  • congestion
  • cough
  • dryness or soreness of the throat
Less common
  • Abdominal or stomach pain
  • diarrhea
  • fever or chills
  • loss of appetite
  • lower back or side pain
  • nausea
  • White patches inside the nose or mouth

Some of the side effects that can occur with mometasone may not need medical attention. As your body adjusts to the medicine during treatment these side effects may go away. Your health care professional may also be able to tell you about ways to reduce or prevent some of these side effects. If any of the following side effects continue, are bothersome or if you have any questions about them, check with your health care professional:

More common
  • Difficulty with moving
  • discouragement
  • feeling sad or empty
  • headache
  • increased abdominal or stomach pain and cramping during menstrual periods
  • irritability
  • lack of appetite
  • loss of interest or pleasure
  • muscle or joint pain
  • muscle pain or stiffness
  • nasal burning and irritation
  • stomach discomfort following meals
  • stuffy or runny nose
  • tiredness
  • trouble concentrating
  • trouble sleeping
  • unexplained runny nose or sneezing
  • upset stomach
Less common
  • Accidental injury
  • bladder pain
  • bloated
  • bloody mucus or unexplained nosebleeds
  • bloody or cloudy urine
  • chest congestion
  • difficult, burning, or painful urination
  • excess air or gas in stomach or intestines
  • frequent urge to urinate
  • full feeling
  • general feeling of discomfort or illness
  • lower back or side pain
  • menstrual changes
  • passing gas
  • post-procedure pain
  • shivering
  • sweating
  • unusual tiredness or weakness
  • vomiting

For Healthcare Professionals

Applies to mometasone: inhalation aerosol, inhalation aerosol powder


Gastrointestinal side effects have included dyspepsia, nausea, flatulence, gastroenteritis, vomiting, and anorexia.[Ref]


Respiratory side effects have included oral candidiasis, pharyngitis, sinus congestion, upper respiratory tract infection, dysphonia, epistaxis, nasal irritation, sinusitis and dry throat.[Ref]


Genitourinary side effects have included dysmenorrhea and urinary tract infection.[Ref]


Psychiatric side effects have included insomnia and depression.[Ref]


Dermatologic side effects have included skin lacerations and insect bites.[Ref]


General side effects have included fatigue, flu-like symptoms, accidental injury, pain, infection and post-procedure pain,[Ref]

Nervous system

Nervous system side effects have included earache and headache.[Ref]


Musculoskeletal side effects have included back pain, myalgia, arthralgia, abdominal pain and musculoskeletal pain.[Ref]


Immunologic side effects have included allergic rhinitis[Ref]


Hypersensitivity side effects have included postmarketing reports of allergic reaction, facial edema hypersensitivity, and throat tightness.[Ref]


1. "Product Information. Asmanex Twisthaler (mometasone)." Schering-Plough Corporation, Kenilworth, NJ.

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