Prevents breathing problems.
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.
- 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.
- 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.
Singulair (Montelukast) is a leukotriene inhibitor. It lowers inflammation in your lungs and nasal passages to prevent asthma and relieve allergies.
What to expect when you take Singulair (montelukast) for AsthmaSkip what to expect section. Skip to Risks & Warnings section.
Side effect rates for Singulair (montelukast)
- Pain, abdominal
- Pain, dental
- Gastroenteritis, infectious
- Decreased liver function
- Muscle weakness/fatiguea/fatigue
Risks and Warnings for Singulair (montelukast)Skip risks section. Skip to common concerns section.
- 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)Final section. Do you want to return to drug navigation?
- 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.
- 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.