Medically reviewed on July 4, 2018
Uses of Asmanex HFA:
- It is used to treat asthma.
- Do not use Asmanex HFA (mometasone inhalation aerosol) to treat an asthma attack. Use a rescue inhaler. Talk with your doctor.
What do I need to tell my doctor BEFORE I take Asmanex HFA?
- If you have an allergy to mometasone or any other part of Asmanex HFA (mometasone inhalation aerosol).
- If you are allergic to any drugs like this one, any other drugs, foods, or other substances. Tell your doctor about the allergy and what signs you had, like rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, or throat; or any other signs.
This medicine may interact with other drugs or health problems.
Tell your doctor and pharmacist about all of your drugs (prescription or OTC, natural products, vitamins) and health problems. You must check to make sure that it is safe for you to take Asmanex HFA (mometasone inhalation aerosol) with all of your drugs and health problems. Do not start, stop, or change the dose of any drug without checking with your doctor.
What are some things I need to know or do while I take Asmanex HFA?
- Tell all of your health care providers that you take Asmanex HFA (mometasone inhalation aerosol). This includes your doctors, nurses, pharmacists, and dentists.
- Call your doctor right away if your breathing problems get worse, if your rescue inhaler does not work as well, or if you need to use your rescue inhaler more often.
- It may take a few weeks to see the full effect.
- If you have been taking Asmanex HFA (mometasone inhalation aerosol) for many weeks, talk with your doctor before stopping. You may want to slowly stop Asmanex HFA (mometasone inhalation aerosol).
- You may have more chance of getting an infection. Wash hands often. Stay away from people with infections, colds, or flu.
- Chickenpox and measles can be very bad or even deadly in some people taking steroid drugs like Asmanex HFA (mometasone inhalation aerosol). Avoid being near anyone with chickenpox or measles if you have not had these health problems before. If you have been exposed to chickenpox or measles, talk with your doctor.
- When changing from an oral steroid to another form of a 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 your doctor right away if you have any of these signs. If you have a bad injury, have surgery, or any type of infection, you may need extra doses of oral steroids. These extra steroids will help your body deal with these stresses. Carry a warning card saying that there may be times when you may need extra steroids.
- Long-term use may raise the chance of cataracts or glaucoma. Talk with the doctor.
- Have your eye pressure checked if you are on Asmanex HFA (mometasone inhalation aerosol) for a long time. Talk with your doctor.
- This medicine may cause weak bones (osteoporosis) with long-term use. Talk with your doctor to see if you have a higher chance of weak bones or if you have any questions.
- Have a bone density test as you have been told by your doctor. Talk with your doctor.
- Use with care in children. Talk with the doctor.
- This medicine may affect growth in children and teens in some cases. They may need regular growth checks. Talk with the doctor.
- Tell your doctor if you are pregnant or plan on getting pregnant. You will need to talk about the benefits and risks of using Asmanex HFA (mometasone inhalation aerosol) while you are pregnant.
- Tell your doctor if you are breast-feeding. You will need to talk about any risks to your baby.
How is this medicine (Asmanex HFA) best taken?
Use Asmanex HFA (mometasone inhalation aerosol) as ordered by your doctor. Read all information given to you. Follow all instructions closely.
- Follow how to use as you have been told by the doctor or read the package insert.
- To gain the most benefit, do not miss doses.
- Keep using Asmanex HFA (mometasone inhalation aerosol) as you have been told by your doctor or other health care provider, even if you feel well.
- For breathing in only.
- Rinse out mouth after each use. Do not swallow the rinse water. Spit it out.
- Have your puffer (inhaler) use checked with your doctor at each visit. Read and follow facts on how to use the puffer. Make sure you use the puffer the right way.
- 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 you are done using your 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 Asmanex HFA (mometasone inhalation aerosol) gets in the eyes, rinse right away with water. If eye irritation or redness lasts, call the doctor.
What do I do if I miss a dose?
- Skip the missed dose and go back to your normal time.
- Do not use 2 doses at the same time or extra doses.
See also: Dosage Information (in more detail)
What are some side effects that I need to call my 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 doctor or get medical help right away if you have any of the following signs or symptoms that may be related to a very bad side effect:
- 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, swallowing, 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.
- Signs of a weak adrenal gland like a very bad upset stomach or throwing up, very bad dizziness or passing out, muscle weakness, feeling very tired, mood changes, not hungry, or weight loss.
- Feeling very tired, weak, or touchy; trembling; having a fast heartbeat, confusion, sweating, or dizziness if you missed a dose or recently stopped Asmanex HFA (mometasone inhalation aerosol).
- Redness or white patches in mouth or throat.
- Bone or joint pain.
- Change in eyesight.
- This medicine can cause very bad breathing problems right after you take a dose. Sometimes, this may be life-threatening. If you have trouble breathing, breathing that is worse, wheezing, or coughing after using Asmanex HFA (mometasone inhalation aerosol), use a rescue inhaler and get medical help right away.
- Flu-like signs.
What are some other side effects of Asmanex HFA?
All drugs may cause side effects. However, many people have no side effects or only have minor side effects. Call your doctor or get medical help if any of these side effects or any other side effects bother you or do not go away:
- Nose and throat irritation.
These are not all of the side effects that may occur. If you have questions about side effects, call your doctor. Call your doctor for medical advice about side effects.
You may report side effects to the FDA at 1-800-FDA-1088. You may also report side effects at http://www.fda.gov/medwatch.
See also: Side effects (in more detail)
If OVERDOSE is suspected:
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.
How do I store and/or throw out Asmanex HFA?
- Store at room temperature. Do not freeze.
- Store in a dry place. Do not store in a bathroom.
- Protect from heat or open flame. Do not puncture or burn even if it seems empty.
- Keep all drugs in a safe place. Keep all drugs out of the reach of children and pets.
- Throw away unused or expired drugs. Do not flush down a toilet or pour down a drain unless you are told to do so. Check with your pharmacist if you have questions about the best way to throw out drugs. There may be drug take-back programs in your area.
Consumer information use
- If your symptoms or health problems do not get better or if they become worse, call your doctor.
- Do not share your drugs with others and do not take anyone else's drugs.
- Keep a list of all your drugs (prescription, natural products, vitamins, OTC) with you. Give this list to your doctor.
- Talk with the doctor before starting any new drug, including prescription or OTC, natural products, or vitamins.
- Some drugs may have another patient information leaflet. Check with your pharmacist. If you have any questions about Asmanex HFA (mometasone inhalation aerosol), please talk with your 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.
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.
More about Asmanex HFA (mometasone)
- Asmanex HFA Side Effects
- During Pregnancy
- Dosage Information
- Drug Interactions
- Support Group
- Pricing & Coupons
- En Español
- 1 Review
- Drug class: inhaled corticosteroids
Other brands: Asmanex Twisthaler