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IMPORTANT NOTE: A valid Prescription is required to be mailed or faxed to complete this order. I acknowledge that I will need to be contacted to complete a health profile before my order is shipped.
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Buying Singulair (Montelukast) Online

Canada Drug Warehouse is a safe and affordable online pharmacy which makes ordering Canadian Drugs such as Singulair hassle free while saving you up to 90% on the cost of your medication. Buy Singulair online today! 

What is Singulair?

Singulair (Montelukast) is a medication used to prevent asthma attacks, exercise induced bronchospasm and year round or seasonal allergies. This medication does not work immediately and should not be used to treat sudden asthma attacks or breathing problems but should be taken regularly to help. Montelukast works by blocking natural substances called leukotrienes which can cause swelling in the lungs and tightening of muscles around the airways when you breathe in an allergen such as pollen.

Always read the patient information and instructions carefully before using this medication.

  • Singulair tablets should be taken orally and can be taken with or without food.
  • Your montelukast dosage is based on your medical condition and response to treatment. You should not change or increase your dosage unless advised by a doctor.
  • Montelukast should be taken at the same time each day. If you are taking this medication for asthma or both asthma and allergies, montelukast is typically taken in the evening. When taken for only allergies, it can be taken in the morning or evening.
  • When taking Singulair to prevent exercise-induced breathing problems, then take Singulair at least two hours before exercise. If you already take this medication daily, you do not need to take an extra dose before exercise.
  • When taken for asthma, continue to use this medication, even when you feel fine. Do not stop taking this medication without speaking to a doctor.
  • Do not take more than one dose of montelukast in a 24 hour period.


Make sure to tell your doctor and pharmacist:

  • If you have any drug allergies.
  • Which other prescription and non-prescription medications you currently take.
  • Your medical history especially of liver disease.
  • If you are breast feeding.

Also be aware that:

  • This medication should only be taken when clearly needed during pregnancy.

Montelukast Side Effects

Common montelukast side effects may include but are not limited to:

  • Stomach pain or diarrhea.
  • Flu or cold symptoms including fever, stuffy nose, sinus pain, coughing or sore throat.
  • Headaches.
  • In children, the loss of bladder control or bed-wetting.

Contact your doctor if you experience any of the following side effects of Singulair:

  • Unusual mood changes.
  • Skin rash, bruising, severe tingling, numbness, pain or muscle weakness.
  • Ear pain, swelling or warmth.
  • Signs of a severe skin reaction including fever, sore throat, swelling in the face or tongue, burning in your eyes, skin pain followed by a red or purple skin rash which spreads especially to your face or upper body and causes blistering and peeling.
  • Signs of an allergic reaction such as hives, difficulty breathing or a swelling of your face, lips or throat.


Q: What should I do if I miss a dose of montelukast?

A: Take your missed dose as soon as you remember. If it is almost time for the next dose then skip your missed dose. Do not take this medicine more than once a day.

A valid Prescription is required to be mailed or faxed to complete this order. I acknowledge that I will need to be contacted to complete a health profile before my order is shipped.

Your Lowest Price, Guaranteed

Our goal is to bring you the most affordable medication. If you find a lower price advertised by another website or your local pharmacy, we’ll match that price or beat it by 10% of the difference.* Call us at 1-877-204-1506 and a member of our CareTeam will be happy to assist you.

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Some exceptions may apply. To qualify for price matching, competitors must meet our standards for patient safety. Advertised prices must be for medication of the same type, strength, quantity, and form.

Real Customers, Honest Reviews

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Mary February 21, 2020

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great customer service. A+++
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Very easy to work with. Great prices.
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