Montelukast Information Disclaimer

Please note that we do not distribute or sell Montelukast. The content provided on this webpage is intended solely for informational and educational purposes. It should not be construed as medical advice, diagnosis, or treatment recommendation. Always consult a qualified healthcare professional for personalised medical advice and treatment options.

Treatment options

Montelukast - welzo
Montelukast - welzo


Montelukast - welzo
Montelukast - welzo
Sale price £15.00
In stock.

Montelukast is a long-term asthma medication that can prevent the onset of asthma attacks and symptoms. This...

Montelukast is a long-term asthma medication that can prevent the onset of asthma attacks and symptoms. This asthma medicine comes in tablet form and should be used as a long-term preventer rather than an immediate reliever.

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Montelukast for Asthma & Breathing Problems

Asthma is a common lung condition that can cause a range of breathing difficulties that happen randomly or after exposure to a trigger. Triggers may include common allergies to pollen or animal dander, infections, environmental changes or from exercise.

Montelukast is a leukotriene receptor antagonist that blocks substances called leukotrienes in order to treat asthma. Montelukast can be used by those wanting to treat asthma symptoms and improves seasonal allergy symptoms.

What is a Montelukast and how does it work?

Montelukast blocks leukotrienes which are responsible for the narrowing and swelling of airways in the lungs and also cause allergy symptoms.

Is a Montelukast right for me?

If you are diagnosed with asthma, COPD or other breathing condition, you may be prescribed Montelukast by a doctor or healthcare professional. However, it may not be suitable for you if you have the following:

  • If you are allergic to montelukast or any other ingredients in this medicine
  • If you are under the age of 15
  • If you are on medications such as phenobarbital, phenytoin, rifampicin, gemfibrozil

Side Effects

All medications can cause potential side effects, below we have listed some potential side effects of Montelukast. However, these do not always occur and are mostly mild in nature. But if you experience any prolonged or worrying side effects of Montelukast, please discontinue the medication immediately and consult your doctor.

Common side effects include:

  • Abdominal pain
  • Headache

Montelukast Patient Leaflet

To view the Montelukast Patient Leaflet click here.

How to take Montelukast?

Always take Montelukast exactly as prescribed by your doctor or advised by the pharmacist. The recommended starting dose for adults is one 10mg tablet taken daily in the evening, however, in presence of other factors, this may be increased or decreased accordingly as per the prescriber's clinical judgement. 

For adults with asthma:

  • You should take only one tablet of Montelukast once a day as prescribed by your doctor
  • The recommended starting dose is one 10mg tablet taken daily in the evening
  • You can take Montelukast with or without food

Warnings and Precautions

Montelukast may not be safe if taken with other medication or recreational drugs. Please inform the prescriber if you are taking any of the listed medications.

DO NOT use Montelukast:

  • If you are allergic to montelukast or any other ingredients in this medicine
  • If you are under the age of 15
  • If you are on medications such as phenobarbital, phenytoin, rifampicin, gemfibrozil

The above-listed warnings are not exhaustive, please consult a doctor, pharmacist or nurse if you have further questions on the use of this medication or potential interactions with other medicines.


Next Day Delivery Guarantee

All orders placed before 14:00 on weekdays will be delivered the next working day. For the majority of the UK, medication will be dispatched by Royal Mail, Monday to Friday, if ordered before 14:00. Dispatches are sent using Royal Mail's Next-Day Tracked 24-Hour service. We will email you tracking information directly and you should receive your order the day after dispatch.


Our Discreet Packaging Promise

We know that many of our customers turn to us when they need personal medication, preferring to use our online service rather than shopping for the product face to face. That is why our delivery is always discreetly packaged in plain brown boxes or enveloped. You will not have to worry about any content descriptions, and the package will be for your eyes only!

Product reviews

Please note the information below is intended for general knowledge, please read the patient information leaflet and/or the information provided by a healthcare professional for more specific guidance. This information should not substitute medical advice.

Can I get Montelukast on the NHS?

Whether or not you can get Montelukast on the NHS is dependent on your local guidelines and eligibility status. It is best to contact your local GP service if you are unsure of whether you can get Montelukast from the NHS.

Can you get Montelukast over the counter?

No, you can’t get Montelukast over the counter without a prescription or consultation. Montelukast is a regulated medication so all purchases need to have a prescription and/or suitable consultation form completed.

Can I buy Montelukast online even if I have never taken it before?

A prescribing pharmacist will need to review your consultation form before the medication can be dispatched.

Is Montelukast safe?

If you have been prescribed Montelukast then it is at the discretion of the prescriber.

However, all medications can potentially have adverse effects and should be taken exactly as prescribed. If you experience any side effects when taking Montelukast then you should contact a doctor immediately.

Are there any foods that should be avoided when taking Montelukast?

We recommend you read the patient information leaflet for this product thoroughly before taking the treatment. This is essential to understanding any interactions that can occur and to take the medication safely.

Can I buy Montelukast from Boots?

It is generally possible to purchase medication, including Montelukast, from UK pharmacies like Boots. However, I recommend checking the Boots website or contacting Boots directly for the most current and accurate information. Remember to consult with a healthcare professional before starting any new medication.

Can I buy Montelukast from Superdrug?

If you would like to buy Montelukast, you will need to check availability on the Superdrug website.

Can I buy Montelukast from Amazon?

Amazon does not sell medication such as Montelukast, as they are not a pharmacy service provider. Always check with Amazon to see what they sell.

How long does Montelukast take to work?

The time it takes for a Montelukast to work can vary greatly depending on several factors, such as the strength, the individual's age, weight, and overall health, as well as any potential interactions with other medications or substances. Generally, the effects of Montelukast may be noticeable within the time frame outlined by the prescribing pharmacist. It is important to follow the prescribed dosage and instructions provided by your healthcare professional, and to consult them if you have any concerns or questions about the medication's efficacy or possible side effects.

How effective is Montelukast?

The effectiveness of Montelukast can vary significantly depending on various factors, such as the dosage, the condition being treated, the individual's age, weight, and overall health, as well as the presence of any other medications or substances that might interact with it. While some medications may be highly effective for certain individuals and conditions, others might experience a lesser degree of benefit or may require adjustments to the dosage or additional treatments to achieve the desired results.

What are the risks of taking Montelukast?

At Welzo, we are dedicated to providing our customers with accurate and comprehensive information about medications. We believe that understanding the potential risks and side effects associated with a medication is essential for making informed decisions about your health. This guide outlines some general considerations for assessing the risks of medication and includes references to the National Health Service (NHS) for further information.

  1. Read the Patient Information Leaflet (PIL): Every medication comes with a Patient Information Leaflet, which provides essential details about the drug, its uses, and potential side effects. Be sure to read this leaflet carefully before starting any new medication. The Electronic medicines compendium has a list of patient leaflets. you can visit by heading to
  2. Be aware of potential side effects: All medications have the potential to cause side effects, ranging from mild and short-lived symptoms to more serious, long-lasting issues. It's important to understand the possible side effects of a medication and how to manage them. The NHS has a helpful resource on managing medication side effects, while also speaking to a healthcare professional is important in understanding any potential risks of taking Montelukast.
  3. Interactions with other medications: Some medications may interact with others, leading to increased side effects or reduced effectiveness. Make sure to inform your healthcare professional about all the medications and supplements you are currently taking. The NHS offers a useful tool for checking potential drug interactions here.
  4. Contraindications and precautions: Certain medical conditions or factors may make it unsafe for you to take a particular medication. Before starting any new medication, inform your healthcare professional about your medical history and any current health issues. The NHS provides more information about contraindications and precautions here.
  5. Appropriate use and dosage: It's crucial to follow the prescribed dosage and instructions for taking a medication to ensure its effectiveness and minimise the risk of side effects. The NHS has a useful guide on using medicines safely here.
  6. Monitoring and follow-up: Some medications require regular monitoring or follow-up appointments with your healthcare professional to ensure their safety and effectiveness. Be sure to schedule and attend these appointments as needed.

Can I buy Montelukast in the UK?

Yes, you can buy Montelukast in the UK with a valid prescription and or consultation form. Montelukast is available in the UK for purchase from local pharmacies with a valid prescription and or consultation. It is imperative that you ensure that the pharmacy you are buying the products from is licensed and registered with the General Pharmaceutical Council (GPhC).

Are Montelukast users satisfied with the product?

We have a list of reviews from customers taking Montelukast at the bottom of this page. For more information of the reviews of Montelukast head over to for further details.

Can I buy Montelukast from an online pharmacy?

This is dependent on your eligibility for the medication.

How much does Montelukast cost?

The costs of Montelukast are listed at the top of the page. Pricing is provided as a reference as we do not sell Montelukast.

What are the main symptoms of asthma?

People suffering with asthma show signs of wheeziness, a tight chest, breathlessness and coughing.

What should I do if I miss a dose of Montelukast?

It is important to continue to your next scheduled dose. Do not double up capsules for any missed doses.

Can I take Montelukast alongside my inhaler?

Individuals suffering with asthma usually use inhalers to manage asthma. Montelukast may be used as extra medication.

How long does Montelukast take to work?

Montelukast begins working immediately, reducing leukotriene. It may take a few weeks to reach its full effect.

Customer Reviews

Based on 2 reviews
Thurman Manno

The website for is very easy to use. I had no trouble navigating it, even though I'm not very tech-savvy.

Virgie Kiel

Montelukast has been a game changer for my asthma management. I've noticed a significant reduction in my symptoms and I've been able to lead a more active lifestyle without worry. Highly recommend!