Montelukast belongs to a group of medications known as leukotriene receptor antagonists. It is used to prevent and manage asthma symptoms and to relieve the symptoms of seasonal allergies, also known as seasonal allergic rhinitis or hay fever. It works by blocking the effects of leukotrienes, a substance produced by the body in response to certain "triggers" that cause narrowing and swelling of airways in the lungs. Montelukast usually starts to work within one day.
When used to prevent and manage asthma, it is important to understand that montelukast should not be used to relieve an asthma attack once it has started. People with asthma should always have their fast-acting asthma relief medication on hand to treat an asthma attack.
Your doctor may have suggested this medication for conditions other than the ones listed in these drug information articles. As well, some forms of this medication may not be used for all of the conditions discussed here. If you have not discussed this with your doctor or are not sure why you are taking this medication, speak to your doctor. Do not stop taking this medication without consulting your doctor.
Each pink, oval, biconvex tablet, debossed with "AUM103" on one side and plain on the other side, contains 4 mg of montelukast as montelukast sodium. Nonmedicinal ingredients: aspartame, cherry flavour, hydroxypropylcellulose, magnesium stearate, mannitol, microcrystalline cellulose, croscarmellose sodium, and red iron oxide.
Each pink, round, biconvex tablet, debossed with "AUM102" on one side and plain on the other side, contains 4 mg of montelukast as montelukast sodium. Nonmedicinal ingredients: aspartame, cherry flavour, hydroxypropylcellulose, magnesium stearate, mannitol, microcrystalline cellulose, croscarmellose sodium, and red iron oxide.
Each beige, round, biconvex, film-coated tablet, debossed with "AUM 101" on one side and plain on the other side, contains 10 mg of montelukast as montelukast sodium. Nonmedicinal ingredients: lactose monohydrate, microcrystalline cellulose, croscarmellose sodium, magnesium stearate, hydroxypropyl methylcellulose, hydroxypropyl cellulose, titanium dioxide, iron oxide yellow, carnauba wax, and iron oxide red.
For seasonal allergic rhinitis, the recommended dose of montelukast for adults and adolescents 15 years and older is one 10 mg tablet taken once a day in the evening.
For asthma, the recommended dose of montelukast for adults and adolescents 15 years and older is one 10 mg tablet taken once a day in the evening. For children 6 to 14 years old, the recommended dose is one chewable 5 mg tablet taken once a day in the evening. For children 2 to 5 years old, the recommended dose is one chewable 4 mg tablet or one packet of 4 mg granules taken in the evening.
Montelukast can be taken with or without food.
The oral granules can be given either directly in the mouth, or mixed with a spoonful of cold or room temperature soft food (e.g., apple sauce). The packet should not be opened until ready to use. After opening the packet, the full dose of oral granules must be given within 15 minutes. Do not store any oral granule and food mixture for later use. Do not mix the oral granules in liquid. Children may drink liquids after swallowing the oral granules.
Many things can affect the dose of medication that a person needs, such as body weight, other medical conditions, and other medications. If your doctor has recommended a dose different from the ones listed here, do not change the way that you are taking the medication without consulting your doctor.
It is important to take this medication exactly as prescribed by your doctor. If you miss a dose, skip the missed dose and continue with your regular dosing schedule. Do not take a double dose to make up for a missed one. If you are not sure what to do after missing a dose, contact your doctor or pharmacist for advice.
Store this medication at room temperature, protect it from light and moisture, and keep it out of the reach of children.
Do not take this medication if you are allergic to montelukast or any ingredients of the medication.
Although most of the side effects listed below don’t happen very often, they could lead to serious problems if you do not check with your doctor or seek medical attention.
Check with your doctor as soon as possible if any of the following side effects occur:
Stop taking the medication and seek immediate medical attention if any of the following occur:
Before you begin taking a medication, be sure to inform your doctor of any medical conditions or allergies you may have, any medications you are taking, whether you are pregnant or breast-feeding, and any other significant facts about your health. These factors may affect how you should take this medication.
Asthma attacks and asthma control: The effectiveness of montelukast in treating acute asthma attacks has not been established. You should not use it to treat an acute asthma attack – have your rescue medication ready in case of an acute attack. Do not stop taking montelukast without consulting your doctor. For this medication to be effective, it is important to take it regularly on a daily basis, even if you feel your asthma is under control, unless otherwise directed by your doctor.
If you feel your asthma symptoms are not improving or are getting worse while taking this medication, contact your doctor. If your asthma is made worse by acetylsalicylic acid (ASA), do not take ASA or other nonsteroidal anti-inflammatory medications (NSAIDS; e.g., ibuprofen, ketoprofen, naproxen). If your asthma is made worse by exercise, continue to use the medications your doctor has prescribed before exercise.
Behaviour changes: Some people have reported changes in behaviour associated with taking montelukast. There have been occasional reports of aggressive behaviour or hostility, anxiousness, disorientation or decreased memory. If you experience any of these effects or notice them in a family member who is taking this medication contact your doctor as soon as possible.
Depression: Montelukast has been associated with mood swings and symptoms of depression. If you have depression or a history of depression, discuss with your doctor how this medication may affect your medical condition, how your medical condition may affect the dosing and effectiveness of this medication, and whether any special monitoring is needed.
If you experience symptoms of depression such as poor concentration, changes in weight, changes in sleep, decreased interest in activities, or notice them in a family member who is taking this medication contact your doctor as soon as possible.
Phenylketonuria: The chewable tablet form of this medication contains aspartame, an artificial sweetener which contains phenylalanine. The 4 mg chewable tablet contains 0.674 mg of phenylalanine, and the 5 mg chewable tablet contains 0.842 mg. People with phenylketonuria are unable to break phenylalanine down to get rid of it. If you have phenylketonuria, talk to your doctor about other alternatives.
Liver function: Liver disease or reduced liver function may cause this medication to build up in the body, causing side effects. The safety of using montelukast for people with severely reduced liver function has not been established. If you have reduced liver function, discuss with your doctor how this medication may affect your medical condition, how your medical condition may affect the dosing and effectiveness of this medication, and whether any special monitoring is needed.
If you experience symptoms of liver problems such as fatigue, feeling unwell, loss of appetite, nausea, yellowing of the skin or whites of the eyes, dark urine, pale stools, abdominal pain or swelling, and itchy skin, contact your doctor immediately.
Pregnancy: This medication should not be used during pregnancy unless the benefits outweigh the risks. If you become pregnant while taking this medication, contact your doctor immediately.
Breast-feeding: It is not known if montelukast passes into breast milk. If you are a breast-feeding mother and are taking this medication, it may affect your baby. Talk to your doctor about whether you should continue breast-feeding.
Children: The safety and effectiveness of montelukast have not been established for children under 2 years old. Montelukast can be used to treat asthma in children aged 2 years and older and to treat seasonal allergies in adolescents 15 years and older.
There may be an interaction between montelukast and any of the following:
All material copyright MediResource Inc. 1996 – 2020. Terms and conditions of use. The contents herein are for informational purposes only. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. Source: www.medbroadcast.com/drug/getdrug/Mar-Montelukast