Do I need a prescription to buy Singulair 5mg Tablet?

No. Singulair 5mg Tablet is a non-prescription product and can be ordered without a prescription. It is still dispensed by a registered pharmacist on DoctorOnCall.

What does Singulair 5mg Tablet contain?

Singulair 5mg Tablet is a tablet containing Montelukast Sodium (equivalent to Montelukast 5mg). The full ingredient list is shown in the Composition or Ingredients section on this page and on the product packaging.

What pack sizes does Singulair 5mg Tablet come in?

It is supplied in pack sizes of 28s and 7s. Choose the pack size you need from the options shown on this page before adding the item to your cart.

Why is there no information here about what Singulair 5mg Tablet is for?

This page is limited to product, safety and handling information in line with Malaysian rules on medicine information. If you want advice on whether this product suits you, book an online consultation with a doctor or pharmacist on DoctorOnCall.

How should I use Singulair 5mg Tablet?

Use it exactly as stated on the pack label, without changing the amount or how often you use it. If anything on the label is unclear, check with a pharmacist before the first use, and read the Directions for Use section on this page.

Can I speak to a doctor or pharmacist about Singulair 5mg Tablet before I buy it?

Yes. DoctorOnCall offers online consultations with licensed doctors and registered pharmacists, so you can ask about this product, your existing medicines, or anything on the label before you place an order.

What should I do if I notice side effects after using Singulair 5mg Tablet?

Stop using the product and speak to a doctor or pharmacist about any reaction that concerns you. Seek medical care immediately for signs of a severe reaction such as difficulty breathing, swelling of the face, lips or throat, or a widespread rash. Reported reactions are listed in the Side Effects section on this page.

How long will delivery take?

Within Malaysia, standard delivery takes 3 to 5 working days. Same-day delivery is available in the Klang Valley for orders placed before 12pm; orders placed after 12pm arrive by the end of the next day. Orders to Singapore are sent as international deliveries and take 5 to 9 working days. A lump-sum shipping and handling fee applies to every overseas delivery and is shown at checkout.

What payment methods can I use?

Customers in Malaysia can pay by FPX online banking, credit or debit card (Visa and Mastercard), and supported e-wallets including Touch ‘n Go eWallet, GrabPay and ShopeePay. FPX and local e-wallets are tied to Malaysian bank and wallet accounts, so if your delivery address is in Singapore, use the payment options displayed at checkout for that address rather than assuming the same list applies.

Can Singulair 5mg Tablet be delivered to Singapore?

Yes. DoctorOnCall ships to Singapore as an international order dispatched from Malaysia, arriving in 5 to 9 working days with a lump-sum shipping and handling fee. Singapore’s Health Sciences Authority (HSA) allows personal imports of up to three months’ supply of a medicine for your own use or an immediate family member’s, as long as it contains no controlled drugs, psychotropic substances or prohibited items. Keep the product in its original labelled packaging and keep a copy of your prescription or doctor’s letter with it. Quantities above three months’ supply, and medicines containing controlled substances, require prior HSA approval.

Is Singulair 5mg Tablet registered with the authorities?

Products listed on DoctorOnCall are registered with Malaysia’s Ministry of Health for supply in Malaysia, and each pack carries its MAL registration number. An order delivered to Singapore arrives as a personal import of a Malaysia-registered product; HSA product registration is not required for personal-use quantities, but it is also not the same as a product registered for sale in Singapore. If you need a locally registered Singapore product, buy it from a pharmacy in Singapore.

Who do I contact if there is a problem with my order?

DoctorOnCall’s customer care team handles order, delivery and product queries through the contact channels on the site, including WhatsApp and the online help centre. For deliveries to Singapore, allow more time before chasing an order than you would for a local Malaysian delivery, as the parcel passes through customs clearance and tracking updates can appear later in the journey.

Singulair 5mg Tablet | montelukast | children asthma allergy tablet | DoctorOnCall Malaysia

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Singulair 5mg Tablet

Brand Organon

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Reviewed byDr. Mohd Izzat Amir Bin AwangDoctor of Medicine (MD), University of Mansoura - Manchester

Written byDr. Chong Zhan PongDoctor of Medicine (MD), International Medical University (IMU)

Last updated: October 15, 2026

Overview

Singulair 5mg Tablet is a tablet with Montelukast Sodium (equivalent to Montelukast 5mg) declared as its active content. It is supplied in pack sizes of 28s and 7s.

This is a non-prescription product and can be purchased without a prescription. Only product, safety and handling details are published on this page.

An online consultation with a DoctorOnCall doctor or pharmacist is available for this product, and a registered pharmacist reviews each order before dispatch to Malaysia or Singapore. Follow the directions on the label and on the leaflet inside the pack.

Directions for Use

Singulair 5mg Tablet should be chewed thoroughly and not swallowed whole, usually given once daily in the evening, with or without food, exactly as prescribed by your child’s doctor. For asthma prevention, it should be taken regularly even when your child feels well, as it is not intended for relief of an acute asthma attack.

Dosage

The usual prescribed dose for children aged 6 to 14 years is one 5mg chewable tablet once daily in the evening. Your doctor will confirm the correct dose based on your child’s age and condition; do not adjust the dose without medical advice, and do not use this strength in children younger than 6 years without a doctor’s specific instruction.

Storage Instructions

Store below 30°C, protected from light and moisture, in the original blister packaging. Keep out of reach of children, even though the tablet is chewable and child-friendly in taste.

Side Effects

Headache
Stomach discomfort or pain
Cough
Dizziness
Fatigue
Sore throat
Diarrhoea

Contraindications

Known hypersensitivity to montelukast or any component of the tablet
Not intended to treat acute asthma attacks or acute bronchospasm
Not a substitute for inhaled or oral corticosteroids unless directed by a doctor
Use with caution in children with a history of neuropsychiatric symptoms

Drug / Food Interactions

Phenobarbital and rifampicin — may reduce montelukast blood levels and effectiveness
Other asthma medicines, including inhaled corticosteroids or bronchodilators — montelukast is often used alongside these, but do not stop other prescribed asthma medicines without your doctor’s advice
Inform your doctor of all other medicines your child is taking

Quick Tips

Chew the tablet thoroughly; do not swallow whole
Give the dose in the evening as prescribed, even when your child has no symptoms
Do not use this product to treat a sudden asthma attack — use the prescribed rescue inhaler instead
Watch for any mood, behaviour, or sleep changes and report them to your doctor
Continue other prescribed asthma medicines unless your doctor advises a change

Ingredients / Active Ingredients

Montelukast

Montelukast Sodium (equivalent to Montelukast 5mg)
Mannitol
Microcrystalline cellulose
Cherry flavouring
Aspartame

Safety Advice

Pregnancy

Safe If Prescribed

This medicine should only be used during pregnancy if prescribed by a doctor after careful evaluation.

Breastfeeding

Generally Safe

This medicine is generally safe during breastfeeding with minimal risk to the infant.

Kidney

Generally Safe

Generally safe, but caution may be required in some patients.

Liver

Use With Care

Use cautiously. Liver function monitoring may be required.

Alcohol

Use With Care

Caution is advised when consuming alcohol with this medicine.

Driving

Generally Safe

This medicine is generally safe and should not impair your driving ability.

Relevant Information

Montelukast 5mg chewable tablets are specifically formulated for children aged 6 to 14 years and should not be confused with the 4mg strength intended for younger children aged 2 to 5 years, or the 10mg film-coated tablet for adults. Parents should ensure the correct strength is used for their child’s age group and should follow up with the prescribing doctor periodically to review asthma or allergy control and monitor for any behavioural side effects.

Frequently Asked Questions

Product Specifications

Brand	Organon
Classification	Non-prescription
Ingredients / Active Ingredients	Montelukast
Pack Size	28s, 7s
Shelf Life	Singulair 5mg Tablet is typically stable for up to 24 months from the date of manufacture when stored correctly and unopened. Always check the expiry date printed on the packaging before use.