Mometasone (Oral Inhalation)

Pediatric Medication

Brand Names: US

Asmanex 120 Metered Doses; Asmanex 14 Metered Doses; Asmanex 30 Metered Doses; Asmanex 60 Metered Doses; Asmanex 7 Metered Doses; Asmanex HFA

Brand Names: Canada

Asmanex Twisthaler

What is this drug used for?

  • It is used to treat asthma.

What do I need to tell the doctor BEFORE my child takes this drug?

  • If your child has an allergy to this drug or any part of this drug.
  • If your child is allergic to any drugs like this one or any other drugs, foods, or other substances. Tell the doctor about the allergy and what signs your child had, like rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, or throat; or any other signs.
  • If your child is having a breathing attack.
This is not a list of all drugs or health problems that interact with this drug.
Tell the doctor and pharmacist about all of your child’s drugs (prescription or OTC, natural products, vitamins) and health problems. You must check to make sure that it is safe for your child to take this drug with all of his/her drugs and health problems. Do not start, stop, or change the dose of any drug your child takes without checking with the doctor.

What are some things I need to know or do while my child takes this drug?

All products:

  • Tell all of your child’s health care providers that your child is taking this drug. This includes your child’s doctors, nurses, pharmacists, and dentists.
  • Do not give this drug to treat an asthma attack. Use a rescue inhaler. Talk with the doctor.
  • Call the doctor right away if your child has breathing problems that get worse, if the rescue inhaler does not work as well, or if your child needs to use the rescue inhaler more often.
  • If your child has been taking this drug for many weeks, talk with your child’s doctor before stopping. You may want to slowly stop this drug.
  • It may take a few weeks to see the full effect.
  • Your child may have more chance of getting infections. Avoid crowds and people with infections, colds, or flu.
  • Chickenpox and measles can be very bad or even deadly in some people taking steroid drugs like this drug. Avoid having your child near anyone with chickenpox or measles if your child has not had these health problems before. If your child has been exposed to chickenpox or measles, talk with the doctor.
  • When changing from an oral steroid to another form of steroid, there may be very bad and sometimes deadly side effects. Signs like weakness, feeling tired, dizziness, upset stomach, throwing up, not thinking clearly, or low blood sugar may happen. Call the doctor right away if your child has any of these signs. If your child has a bad injury, has surgery, or any type of infection, he/she may need extra doses of oral steroids. These extra steroids will help your child’s body deal with these stresses. Have your child wear medical alert ID (identification).
  • Long-term use may raise the chance of cataracts, glaucoma, or weak bones (osteoporosis). Talk with your child’s doctor.
  • Your child may need to have a bone density test. Talk with the doctor.
  • Have your child’s eye pressure checked if your child is on this drug for a long time. Talk with the doctor.
  • This drug may affect growth in children and teens in some cases. They may need regular growth checks. Talk with the doctor.

If your child is pregnant or breast-feeding a baby:

  • Talk with the doctor if your child is pregnant, becomes pregnant, or is breast-feeding a baby. You will need to talk about the benefits and risks of using this drug.

Inhaler (powder):

  • If your child is allergic to milk, talk with the doctor.

What are some side effects that I need to call my child’s doctor about right away?

WARNING/CAUTION: Even though it may be rare, some people may have very bad and sometimes deadly side effects when taking a drug. Tell your child’s doctor or get medical help right away if your child has any of the following signs or symptoms that may be related to a very bad side effect:

All products:

  • Signs of an allergic reaction, like rash; hives; itching; red, swollen, blistered, or peeling skin with or without fever; wheezing; tightness in the chest or throat; trouble breathing or talking; unusual hoarseness; or swelling of the mouth, face, lips, tongue, or throat.
  • Signs of infection like fever, chills, very bad sore throat, ear or sinus pain, cough, more sputum or change in color of sputum, pain with passing urine, mouth sores, or wound that will not heal.
  • Feeling very tired, weak, or touchy; trembling; having a fast heartbeat, confusion, sweating, or dizziness if a dose was missed or the drug was recently stopped.
  • Redness or white patches in mouth or throat.
  • Bone or joint pain.
  • Change in eyesight.
  • Feeling very tired or weak.
  • Very upset stomach or throwing up.
  • This drug can cause very bad breathing problems right after your child takes a dose. Sometimes, this may be life-threatening. If your child has trouble breathing, breathing that is worse, wheezing, or coughing after using this drug, have your child use a rescue inhaler and get medical help right away.

Inhaler (aerosol):

  • Flu-like signs.

Inhaler (powder):

If your child has menstrual periods:

  • Period (menstrual) pain.

What are some other side effects of this drug?

All drugs may cause side effects. However, many people have no side effects or only have minor side effects. Call your child’s doctor or get medical help if any of these side effects or any other side effects bother your child or do not go away:

All products:

  • Headache.
  • Nose and throat irritation.

Inhaler (powder):

  • Belly pain.
  • Upset stomach.
  • Muscle pain.
  • Back pain.
These are not all of the side effects that may occur. If you have questions about side effects, call your child’s doctor. Call your child’s doctor for medical advice about side effects.
You may report side effects to your national health agency.

How is this drug best given?

Give this drug as ordered by your child’s doctor. Read all information given to you. Follow all instructions closely.

All products:

  • Follow how to give this drug as you have been told by your child’s doctor or read the package insert.
  • To gain the most benefit, do not miss giving your child doses.
  • Keep giving this drug to your child as you have been told by your child’s doctor or other health care provider, even if your child feels well.
  • For breathing in only.
  • Have your child rinse out the mouth after each use. Do not let your child swallow the rinse water. Have your child spit it out.
  • Check your child’s puffer (inhaler) use with the doctor at each visit. Read and follow facts on how to use the puffer. Make sure your child uses the puffer the right way.

Inhaler (aerosol):

  • Prime before first use or if not used for more than 5 days. To prime the inhaler, spray 4 times into the air away from the face and eyes. Shake well before each spray.
  • Shake well before use.
  • Put the cap back on after your child is done using a dose.
  • Do not use near an open flame or while smoking. It may burst.
  • Do not take the device apart or wash it in water. Clean the mouthpiece at least every 7 days of use by using a dry wipe.
  • This puffer (inhaler) has a dose counter to keep track of how many doses are left. Throw the inhaler away when the dose counter has a 0 in it.
  • Keep the spray away from the eyes. If this drug gets in the eyes, rinse right away with water. If eye irritation or redness lasts, call the doctor.

Inhaler (powder):

  • Clean mouthpiece by wiping with a dry tissue or cloth. Do not wash or put in water.
  • Do not let your child breathe out into the puffer (inhaler). Put the cap back on after giving a dose.

What do I do if my child misses a dose?

Inhaler (aerosol):

  • Skip the missed dose and go back to your child’s normal time.

Inhaler (powder):

  • Give a missed dose as soon as you think about it.
  • If it is close to the time for your child’s next dose, skip the missed dose and go back to your child’s normal time.

All products:

  • Do not give 2 doses at the same time or extra doses.

How do I store and/or throw out this drug?

All products:

  • Store at room temperature. Do not freeze.
  • Store in a dry place. Do not store in a bathroom.
  • Keep all drugs in a safe place. Keep all drugs out of the reach of children and pets.
  • Check with your pharmacist about how to throw out unused drugs.

Inhaler (aerosol):

  • Protect from heat or open flame. Do not puncture or burn even if it seems empty.

Inhaler (powder):

  • Throw away inhaler after 45 days of opening the pouch, when it says 0, or locks you from using it.

General drug facts

  • If your child’s symptoms or health problems do not get better or if they become worse, call your child’s doctor.
  • Do not share your child’s drug with others and do not give anyone else’s drug to your child.
  • Keep a list of all your child’s drugs (prescription, natural products, vitamins, OTC) with you. Give this list to your child’s doctor.
  • Talk with your child’s doctor before giving your child any new drug, including prescription or OTC, natural products, or vitamins.
  • Some drugs may have another patient information leaflet. If you have any questions about this drug, please talk with your child’s doctor, nurse, pharmacist, or other health care provider.
  • If you think there has been an overdose, call your poison control center or get medical care right away. Be ready to tell or show what was taken, how much, and when it happened.

Consumer Information Use and Disclaimer

This information should not be used to decide whether or not to take this medicine or any other medicine. Only the healthcare provider has the knowledge and training to decide which medicines are right for a specific patient. This information does not endorse any medicine as safe, effective, or approved for treating any patient or health condition. This is only a brief summary of general information about this medicine. It does NOT include all information about the possible uses, directions, warnings, precautions, interactions, adverse effects, or risks that may apply to this medicine. This information is not specific medical advice and does not replace information you receive from the healthcare provider. You must talk with the healthcare provider for complete information about the risks and benefits of using this medicine.

Last Reviewed Date



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