July 3, 2015
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Asmanex Twisthaler

(mometasone furoate) Inhalation Powder 110 mcg, 220 mcg


Mometasone furoate, the active component of the ASMANEX TWISTHALER (mometasone furoate) product, is a corticosteroid with the chemical name 9,21-dichloro-11(Beta),17dihydroxy-16(alpha)-methylpregna-1,4-diene-3,20-dione 17-(2-furoate) and the following chemical structure:

ASMANEX TWISTHALER (mometasone furoate) Structural Formula Illustration

Mometasone furoate is a white powder with an empirical formula of C27H30Cl2O6, and molecular weight of 521.44 Daltons.

The ASMANEX TWISTHALER (mometasone furoate) 110 mcg and 220 mcg products are cap-activated, inhalation-driven, multidose dry powder inhalers containing mometasone furoate and anhydrous lactose (which contains trace amounts of milk proteins).

Each actuation of the ASMANEX TWISTHALER (mometasone furoate) 110 mcg or 220 mcg inhaler provides a measured dose of approximately 0.75 or 1.5 mg mometasone furoate inhalation powder, containing 110 or 220 mcg of mometasone furoate, respectively. This results in delivery of 100 or 200 mcg mometasone furoate from the mouthpiece, respectively, based on in vitro testing at flow rates of 30 L/min and 60 L/min with constant volume of 2 L. The amount of mometasone furoate emitted from the inhaler in vitro does not differ significantly for flow rates ranging from 28.3 L/min to 70 L/min at a constant volume of 2 L. However, the amount of drug delivered to the lung will depend on patient factors such as inspiratory flow and peak inspiratory flow through the device. In adult and adolescent patients (aged ≥ 12 years) with varied asthma severity, mean peak inspiratory flow rate through the device was 69 L/min (range: 54-77 L/min). In pediatric patients (aged 5–12 years) diagnosed with asthma, mean peak inspiratory flow rate in the 5- to 8-year-old subgroup was > 50 L/min (minimum of 46 L/min) and for the 9- to 12-year-old subgroup was > 60 L/min (minimum of 48 L/min).

What are the possible side effects of mometasone inhalation (Asmanex Twisthaler 120 Dose, Asmanex Twisthaler 14 Dose, Asmanex Twisthaler 30 Dose, Asmanex Twisthaler 60 Dose, Asmanex Twisthaler 7 Dose)?

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.

Call your doctor at once if you have a serious side effect such as:

  • wheezing, choking, or other breathing problems after using this medication;
  • skin rash, bruising, severe tingling, numbness, pain, muscle weakness;
  • changes in the shape or location of body...

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What are the precautions when taking mometasone furoate (Asmanex Twisthaler)?

Before using mometasone, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients (such as lactose, milk proteins), which can cause allergic reactions or other problems. Talk to your pharmacist for more details.

Before using this medication, tell your doctor or pharmacist your medical history, especially of: current/past infections (such as tuberculosis, herpes), bone loss (osteoporosis), eye problems (such as cataracts, glaucoma), diabetes, decreased adrenal gland function.

If you have switched from a corticosteroid taken by mouth (such as prednisone tablets) to this inhaler within the past 12 months, or if you have been using this product in higher-than-usual doses for a long time, it may...

Read All Potential Precautions of Asmanex Twisthaler »

Last reviewed on RxList: 10/14/2010
This monograph has been modified to include the generic and brand name in many instances.

Asmanex Twisthaler - User Reviews

Asmanex Twisthaler User Reviews

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