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What are the side effects of the Asmanex Twisthaler?

The Asmanex Twisthaler (mometasone powder) may cause some minor side effects, including headaches, sore or dry throat, runny or stuffy nose, nosebleeds, sinus swelling and flu-like symptoms. It may also cause indigestion, an upset stomach or decreased appetite. Let your doctor know if these symptoms don't go away after a reasonable amount of time.

Some more severe side effects could occur when taking the Asmanex Twisthaler that require you to notify your doctor right away. They include:  white sore patches or rash in the mouth; vomiting; fever, chills or persistent sore throat; shortness of breath; wheezing; new or worsening breathing problems; fainting; shakiness; weakness; chest pain; fast or irregular heartbeat; anxiety; depression; lack of energy; tiredness; mental or mood changes; lack of sexual desire; menstrual changes or painful menstruation; difficult or painful urination; muscle or bone pain; bruising; excess hair growth; swelling; or vision changes.

If you show any signs of an allergic reaction to mometasone powder, such as difficulty breathing, tightness in the chest, hives, rash, itching or swelling of the mouth, face, lips or tongue, get medical help immediately. 

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.