Singulair

(Montelukast)

3.7/ 5 average rating with 557 reviewsforSingulair
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Prevents breathing problems.

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Our bottom line

Singulair (Montelukast) has fewer side effects but doesn't work as well as steroid inhalers for asthma. It also helps with allergies.

Quick facts about Singulair
  • Drug class: Respiratory
  • Rx status: Prescription only
  • Generic status: Lower-cost generic available (montelukast)
Prices and discounts
Lowest price for 30 10mg tablets
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$10.25
  • Price before coupon
    $40.15
  • Lowest price with coupon
    $10.25
    74% savings

Upsides

  • 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.

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What to expect from Singulair, on one page

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People’s experience with Singulair

557reviews so far. What do you think?

Downsides

  • 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.

Get the newsletter!

Sign up and get Pill Talk, the latest in health & medicine news from Iodine

Get our free fact sheet

What to expect from Singulair, on one page

Download Fact Sheet
Prices and discounts
Lowest price for 30 10mg tablets
Determining your location...
$10.25
  • Price before coupon
    $40.15
  • Lowest price with coupon
    $10.25
    74% savings
How it works

Singulair (Montelukast) is a leukotriene inhibitor. It lowers inflammation in your lungs and nasal passages to prevent asthma and relieve allergies.

Quick facts about Singulair
  • Drug class: Respiratory
  • Rx status: Prescription only
  • Generic status: Lower-cost generic available (montelukast)

Dosage forms

  • Pill
  • Chewable tablet
  • Granule
People’s experience with Singulair

557reviews so far. What do you think?

What to expect when you take Singulair (Montelukast) for Asthma

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Skip side effects section. Skip to risks and warnings section.

Side effect rates for Singulair (Montelukast)

From 3135 clinical trials of Singulair when taken for asthma: adults > 15 yrs (10 mg/day)
  • Headache
  • Influenza
  • Pain, abdominal
  • Cough
  • Asthenia/fatigue
  • Fever
  • Dyspepsia
  • Pain, dental
  • Gastroenteritis, infectious
  • Dizziness

Risks and Warnings for Singulair (Montelukast)

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    • Higher risk if:
    • Exercise-induced asthma
    • Other environmental triggers

    Singulair (Montelukast) is not used to treat sudden wheezing or asthma attack. You should have a fast-acting (rescue) inhaler with you all the time especially if you are prone to asthma during exercise. Talk to you doctor if your symptoms do not improve or seem to worsen while taking Singulair (Montelukast).

Common concerns from people taking Singulair (Montelukast)

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Pregnancy
Price
  • Reviewed Singulairon 2/22/2017Have been taking this for years for allergies. Only downside for me is the price, even with insurance.
    21
    Woman
    Two years or more
    Year-round allergies
Food
  • 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
  • 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.