Compare Asmanex vs. Singulair

Head-to-head comparisons of medication uses, side effects, ratings, and more.

Asmanex
(Mometasone)

Singulair
(Montelukast)

Prevents breathing problems. Asmanex (Mometasone) is good at controlling and preventing asthma symptoms when you take it every day.Prevents breathing problems. Singulair (Montelukast) has fewer side effects but doesn't work as well as steroid inhalers for asthma. It also helps with allergies.
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Reviews & ratings
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4.651515151515151Asmanex
Reviews for Asmanex (Mometasone)
55%
of people (All ages) say Asmanex (Mometasone) is worth it
39%
say it works well
20%
say it's a big hassle
Have you used Asmanex (Mometasone)?
Worth itNot sureNot worth it
Reviews for Singulair (Montelukast)
66%
+11% vs. Asmanex (Mometasone)
46%
+7% vs. Asmanex (Mometasone)
13%
+7% vs. Asmanex (Mometasone)
552 reviews
Have you used Singulair (Montelukast)?
Worth itNot sureNot worth it
Side effects
AsmanexSingulair
  • Allergic rhinitis 15%
  • Candidiasis, oral 13%
  • Fatigue 11%
  • Musculoskeletal pain 8%
  • Sore throat 6%
  • Joint pain 6%
  • Menstrual cramps 5%
  • Abdominal pain 4%
  • Sinus inflammation 3%
  • Fever 2%
More Asmanex side effects »
  • Dizziness 1%
  • Muscle weakness/fatiguea/fatigue 1%
  • Decreased liver function 1%
  • Congestion, nasal 1%
  • Pain, dental 1%
More Singulair side effects »
How it works
AsmanexSingulair
Asmanex (Mometasone) is a corticosteroid. It lowers inflammation in your lungs, which controls asthma and prevents asthma attacks.Singulair (Montelukast) is a leukotriene inhibitor. It lowers inflammation in your lungs and nasal passages to prevent asthma and relieve allergies.
Type of medication
AsmanexSingulair
Anti-inflammatory
Corticosteroid
Prescription only
Anti-inflammatory
Leukotriene modifier
Prescription only
Available as
AsmanexSingulair
  • Inhaler
  • Pill
  • Chewable tablet
  • Granule
Used for (click to learn more)
AsmanexSingulair
Risk factors for serious side effects
AsmanexSingulair
  • Lowering dose or stopping Asmanex (Mometasone) too quickly especially after long-term treatment
  • Stress such as trauma, surgery or infection
  • Severe milk protein allergy
  • Bacterial or viral infection not being treated
  • Long-term treatment with Asmanex (Mometasone)
  • Not vaccinated against chickenpox or measles
    • Dose of Asmanex (Mometasone)
    • Duration of treatment
    • Not rinsing mouth after use
    • Using higher dose of Asmanex (Mometasone)
    • History of high internal eye pressure
    • History of cataracts
    • History of glaucoma
    Detailed Asmanex (Mometasone) risks & warnings »
    • Exercise-induced asthma
    • Other environmental triggers
      • Recent treatment with corticosteroid medication
      • Lowering dose of corticosteroid medication
      • History of phenylketonuria (PKU)
      • History of liver disease including hepatitis
      • history of alcohol use
      • Other medications that cause liver injury
      Detailed Singulair (Montelukast) risks & warnings »
      Pregnancy

      Research studies with animals found harmful effects on unborn babies. It hasn’t been properly studied in humans. The benefits might outweigh the risks even if you’re pregnant. Talk with your doctor.

      Research studies with animals haven’t found a risk to unborn babies, but it hasn’t been properly studied in humans.

      Food
      AsmanexSingulair
      No food related info.
      • Singulair (Montelukast) contains aspartame (phenylalanine). People who have phenylketonuria (PKU) can't break down the amino acid phenylalanine. It builds up and causes serious medical problems. If you have PKU, don't use this product.
      Kidneys and liver
      AsmanexSingulair
      • Adrenal suppression can occur if you lower your dose or stop taking Asmanex (Mometasone) too quickly. Symptoms include joint or muscle pain, extreme low energy and depression. Changes in your medication need to be done slowly and over time. Talk to your doctor before you decrease or stop Asmanex (Mometasone).
      • There are reports of liver injury in people taking Singulair (Montelukast) mostly in combination with other factors such as drugs, alcohol, and liver disease. If you have any of these risk factors, your doctor will need to check your liver function periodically.
      Weight
      AsmanexSingulair
      • Steroids can slow height growth in kids.
      No weight related info.
      Upsides and benefits
      AsmanexSingulair
      • Relieves symptoms and improves control of asthma.
      • People report fewer asthma symptoms and better lung function when they take it every day.
      • Inhaling this medicine (rather than taking an oral steroid) gets more into the lungs and less into rest of your body, which lowers the risk of side effects. Inhaled corticosteroids can be used safely for years compared to oral corticosteroids like prednisone.
      • Some people who take this medicine are able to stop other asthma medications or use their fast-acting (rescue) inhalers less often.
      • Prevents symptoms and improves lung function in children and adults with chronic asthma.
      • A single 10 mg dose improves exercise-induced asthma symptoms for up to 24 hours.
      • Fewer side effects compared to other asthma treatments.
      • Also relieves nasal allergy symptoms.
      • Effective pill alternative to corticosteroid inhalers.
      Downsides and risks
      AsmanexSingulair
      • You can't lower the dose or stop taking it too suddenly.
      • Steroids can slow height growth in kids.
      • Because steroids suppress your immune system, you can catch bacterial and viral infections easier, and they can take longer to go away.
      • Can cause new or worsening eye pressure, glaucoma, and cataracts.
      • You have to use Montelukast every day to control your symptoms.
      • Somewhat less effective than corticosteroid inhalers for asthma.
      • There's no generic available, so it can be expensive.
      • Can cause behavior changes, agitation, aggression, and difficulty sleeping for some people.
      Tips from our pharmacists for people taking the medication
      AsmanexSingulair
      • Use it every day to control your asthma symptoms.
      • Starts working the same day, but it can take 1 to 2 weeks to feel the full effects.
      • Rinse your mouth out with water after each use.
      • Replace the cap on the inhaler after each use to protect it from moisture.
      • Hold your breath for 10 seconds after inhaling the medication.
      • Don't breathe out into the inhaler mouthpiece.
      • Tell your doctor if the medication stops working or if your symptoms get worse.
      • Contains lactose, so don't take if you have a milk protein allergy.
      • Take it once a day to control asthma and allergy symptoms.
      • If you're using it for asthma or allergies, take it in the evening.
      • Use it 2 hours before exercising.
      • Granules can be taken by mouth or dissolved in liquid or soft food.
      • Doesn't treat sudden wheezing or asthma attacks once they start. Keep a fast-acting (rescue) inhaler with you.
      • The chewable tablets contain aspartame, so don't use them if you have a sensitivity to phenylalanine or phenylketones.
      Learn more
      More about AsmanexSide effectsReviews & ratingsAlternativesFDA package insert
      Have you used Asmanex (Mometasone)?
      Worth itNot sureNot worth it
      More about SingulairSide effectsReviews & ratingsAlternativesFDA package insert
      Have you used Singulair (Montelukast)?
      Worth itNot sureNot worth it