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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.

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Linda C

January 9, 2023

I love Canada Drug Warehouse. They are super efficient and I like that they call me when one of my medications is about to expire. They have saved me thousands of dollars. This is a great company!!!!!!

James D

October 14, 2022

My prescription was received in 14 business days from the date of payment. The meds arrived in individual sealed pill packs. This was my first order and very pleased with their prompt and courteous service.

John H

October 1, 2022

Very informed and efficient agent taking order. Delivery when promised. Outstanding service.

Robert C

September 9, 2022

Meds received in a timely manner.


September 8, 2022

This is an absolutely reliable source of prescription meds and I have saved more than $5,000 in one year by ordering from them. Highly recommend.

Donald K

September 7, 2022

I have only good things to say about Canada Drug Warehouse. Please keep up the good work.

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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