What’s singulair (montelukast)?

by on October 31, 2016


What’s singulair (montelukast)?


MNT Knowledge Center

Singulair (montelukast) is really a prescription medicine to prevent bronchial asthma attacks for patients aged 12 several weeks or even more (children and adults). Montelukast is definitely an LTRA (leukotriene receptor antagonist) also is accustomed to relieve signs and symptoms of periodic allergic reactions, in addition to stopping exercise-caused bronchospasm in children and adults aged 6 years or even more.

Based on Merck & Co. Corporation., the marketers of Singulair, montelukast is:

Accustomed to prevent bronchial asthma attacks in youngstersOrgrown ups aged 12 several weeks

Used lengthy-term for bronchial asthma treatment in youngstersOrgrown ups aged 12 several weeks

Accustomed to alleviate signs and symptoms of indoor and outside allergic reactions – indoor allergic reactions in youngstersOrgrown ups aged 6 several weeks

A Canadian study demonstrated that short-term Singulair put into usual bronchial asthma therapy may significantly reduce bronchial asthma morbidity and unscheduled doctors visits.

So how exactly does Singulair work?

Montelukast blocks the act of leukotrienes. Leukotrienes are fatty signaling molecules that the body produces when there’s inflammation. They’re considered to play a vital role in resulting in the signs and symptoms of bronchial asthma and hay fever. They lead towards the pathophysiology of bronchial asthma, causing inflammation and swelling within the airways, air flow obstruction, elevated secretion of mucus, mucosal accumulation, and bronchoconstriction.

What goes on?

Bronchial asthma triggers are inhaled, for example pollen

Your body reacts by releasing leukotrienes

Leukotrienes make the lung area and airways to get red and inflamed, the airway muscles tighten, leading to bronchial asthma signs and symptoms, including difficulty breathing, wheezing and coughing

Singulair blocks the act of leukotrienes – it stops the airway muscles from contracting, the soreness and redness within the airways is avoided, and you will find no bronchial asthma signs and symptoms (or fewer severe ones).

As leukotrienes also cause allergy signs and symptoms, for example hay fever, Singulair can also be effective for relieving hay fever signs and symptoms.

Singulair presentation

Singulair is available in four forms:

For kids aged 12 to 23 several weeks – A 4-mg dental granules packet

For kids aged two to five years – A 4-mg cherry chewable tablet

For kids aged 6 to 14 years – A 5-mg cherry chewable tablet

For adolescents and adults aged 15 years – A Ten-mg tablet that you simply swallow whole.

Important safety specifics of Singulair

The most typical negative effects associated with taking montelukast include:



Ear infection


Sinus infection

A sore throat

Stomach discomfort

Upper respiratory system infection.

Singulair may also cause these much rarer but potential serious negative effects:

Behavior/mood changes, hostility, aggression, agitation, vivid and uncomfortable dreams, , confusion, anxiety, hallucinations, sleepwalking, suicidal ideas, suicidal actions (including suicide), insomnia, tremor, and depression.

Singulair isn’t fast-acting enough to cope with an bronchial asthma attack immediately. Don’t take it for bronchial asthma relief immediately from the sudden bronchial asthma attack. Make use of the save inhaler for bronchial asthma attacks.

If bronchial asthma signs and symptoms worsen, or maybe attacks be severe, inform your physician immediately.

When the child beneath your care has phenylketonuria you should realize that cherry chewable tablets contain a part of aspartame (phenylalanine).

Identifying which patients respond better to Singulair

Inside a study transported out by Professor Nathan Rabinovitch, MD, two biomarkers were identified that could help doctors predict more precisely which patients may benefit the best from montelukast. Singulair helps some patients, although not others.

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