Montelukast (Singulair)
$0.97
Singulair contains Montelukast and helps prevent asthma symptoms and relieves hay fever by reducing airway inflammation.
Drug Information
11 reviews for Montelukast (Singulair)
Singulair contains Montelukast.
Montelukast is a tablet used to prevent asthma symptoms and to relieve hay fever. It is not a reliever and does not stop a sudden attack.
What is it used for?
- Preventing asthma symptoms, as an add-on to inhalers
- Preventing asthma triggered by exercise
- Hay fever and year-round allergies
How does it work?
Montelukast blocks chemicals called leukotrienes, which cause swelling, tightening and mucus in the airways during an asthma or allergy reaction.
This information is written in simple words to help you understand this product. It does not replace advice from your doctor or pharmacist.
Read these points before you start. If any of them apply to you, talk to your doctor or pharmacist first.
- It can cause mood and behaviour changes in some people, including bad dreams, anxiety, depression and, rarely, thoughts of self-harm. Stop and tell your doctor if this happens.
- It does not replace your preventer inhaler. Keep using your other asthma medicines.
- Always carry your reliever inhaler.
- Tell your doctor if you have liver problems or phenylketonuria (chewable tablets contain aspartame).
- Tell your doctor or pharmacist about every other medicine, vitamin or herbal product you use.
- Keep this product out of the reach and sight of children.
Like all medicines, Singulair can cause side effects, but not everybody gets them.
Common side effects
- Headache
- Stomach pain or diarrhoea
- Upper respiratory infections
- Bad dreams or trouble sleeping
These are usually mild and often get better as your body gets used to it. Tell your doctor if they bother you or do not go away.
Stop using it and get medical help straight away if you notice:
- Mood changes: agitation, aggression, anxiety, depression, strange dreams, sleepwalking, or thoughts of self-harm
- Tingling or numbness in the arms or legs, with a rash and flu-like symptoms
- Yellowing of the skin or eyes
This is not a complete list. If you notice anything unusual, ask your doctor or pharmacist.
- Take it once a day. For asthma, take it in the evening.
- The usual dose is 10 mg for adults and teenagers, 5 mg chewable for children 6 to 14, and 4 mg for children 2 to 5.
- Swallow the tablet with water. Chewable tablets should be chewed well.
- For exercise-induced asthma, take it at least 2 hours before exercise, no more than once a day.
If you miss a dose: Skip the missed dose and take the next one at the normal time. Never take two doses at once.
If you use too much: Contact your doctor, a poison control centre or your local emergency number straight away, even if you feel fine. Take the pack with you.
How to store it: Keep it in its original pack at room temperature (below 25°C / 77°F), away from heat, damp and direct sunlight. Do not use it after the expiry date.
- QCan Singulair stop an asthma attack?
- A
No. It prevents symptoms over time. Use your reliever inhaler for an attack.
- QWhy should I watch my mood on Singulair?
- A
A small number of people have mood or behaviour changes. Tell your doctor straight away if you notice anything unusual.
- QHow long does Singulair take to work?
- A
It starts working within a day, but it may take a few weeks to see the full effect.

Nicholas Ramos –
Delivery of my Montelukast was quicker than I thought it would be. Good value for the money. Everything inside was snug and protected.
Lucas Farah –
I found Singulair on this site pretty quickly. Packaging was clean and professional. Overall very good, thanks.
Camila Marino –
My order went through without any problems. It was packed with care, which I really noticed. Ordering was straightforward from start to finish. I would order here again.
Noah Saxena –
Quick review of my recent order. It was cheaper than my usual place, and the service was just as good. I had a quick question and the support team replied fast. Very satisfied with how it all went.
Natalia Romano –
The courier delivered it safely and on schedule. Also, the customer team was respectful and answered everything I asked. I would recommend this site to friends and family.
Arjun Kang –
I used this site for my latest order and had no problems. The order form was short and easy to fill in. It was what I expected when I opened it.
Isabel Alvarez –
Found what I needed on this site without any trouble. Someone from the team followed up to make sure all was fine. On top of that, the packing was discreet and tidy. And the wait for delivery was short and painless.
David Ivanov –
I just received my order and wanted to leave a quick note. Prices here are easy on the pocket. All good on my side!
Charlotte Shin –
I ordered from here after comparing a few options. My Montelukast reached me without any delays. The box was sturdy and the contents were well protected.
Camila Ho –
Wanted to share my experience with this order. I think the pricing is fair for what you get. Another good thing: the pages loaded fast and everything was easy to read. Thanks for the easy experience!
Elena Nair –
I tried this site for Singulair after checking a couple of other places. Nothing was broken or leaking and the box was in good shape. Will be using this site again.