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Active substance(s): MONTELUKAST

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SINGULAIR® Paediatric 4 mg Granules
(montelukast sodium)

Patient Information Leaflet
Your medicine is called SINGULAIR Paediatric 4 mg Granules but will be referred to as
SINGULAIR Paediatric throughout the leaflet:
Read all of this leaflet carefully before you give this medicine to your child because it
contains important information.
• Keep this leaflet. You may need to read it again.
• If you have any further questions, ask your doctor or pharmacist.
• This medicine has been prescribed for your child only. Do not pass it on to others. It may harm
them, even if their signs of illness are the same as your child’s.
• If your child gets any side effects, talk to your doctor or pharmacist. This includes any possible
side effects not listed in this leaflet. See section 4.
What is in this leaflet
1. What SINGULAIR Paediatric is and what it is used for
2. What you need to know before your child takes SINGULAIR Paediatric
3. How to take SINGULAIR Paediatric
4. Possible side effects
5. How to store SINGULAIR Paediatric
6. Contents of the pack and other information

1. What SINGULAIR Paediatric is and what it is used for
What SINGULAIR Paediatric is
SINGULAIR Paediatric is a leukotriene receptor antagonist that blocks substances called
How SINGULAIR Paediatric works
Leukotrienes cause narrowing and swelling of airways in the lungs. By blocking leukotrienes,
SINGULAIR Paediatric improves asthma symptoms and helps control asthma.
When SINGULAIR Paediatric should be used
Your doctor has prescribed SINGULAIR Paediatric to treat your child’s asthma, preventing
asthma symptoms during the day and night.
• SINGULAIR Paediatric is used for the treatment of 6 months to 5 year old patients who are
not adequately controlled on their medication and need additional therapy.
• SINGULAIR Paediatric may also be used as an alternative treatment to inhaled
corticosteroids for 2 to 5 year old patients who have not recently taken oral corticosteroids for
their asthma and have shown that they are unable to use inhaled corticosteroids.
• SINGULAIR Paediatric also helps prevent the narrowing of airways triggered by exercise for
patients 2 years of age and older.
Your doctor will determine how SINGULAIR Paediatric should be used depending on the
symptoms and severity of your child's asthma.
What is asthma?
Asthma is a long-term disease.
Asthma includes:
• difficulty breathing because of narrowed airways. This narrowing of airways worsens and
improves in response to various conditions.
• sensitive airways that react to many things, such as cigarette smoke, pollen, cold air,
or exercise.
• swelling (inflammation) in the lining of the airways.
Symptoms of asthma include: Coughing, wheezing, and chest tightness.

2. What you need to know before your child takes SINGULAIR Paediatric
Tell your doctor about any medical problems or allergies your child has now or has had.
Do not give SINGULAIR Paediatric to your child
• if he/she is allergic to montelukast or any of the other ingredients of this medicine
(listed in section 6).
Warnings and precautions
Talk to your doctor or pharmacist before you give SINGULAIR Paediatric to your child.
• If your child’s asthma or breathing gets worse, tell your doctor immediately.
• Oral SINGULAIR Paediatric is not meant to treat acute asthma attacks. If an attack occurs,
follow the instructions your doctor has given you for your child. Always have your child’s
inhaled rescue medicine for asthma attacks with you.
• It is important that your child take all asthma medications prescribed by your doctor.
SINGULAIR Paediatric should not be used instead of other asthma medications your doctor
has prescribed for your child.
• If your child is on anti-asthma medicines, be aware that if he/she develops a combination of
symptoms such as flu-like illness, pins and needles or numbness of arms or legs, worsening
of pulmonary symptoms, and/or rash, you should consult your doctor.

• Your child should not take acetyl-salicylic acid (aspirin) or anti-inflammatory medicines
(also known as non-steroidal anti-inflammatory drugs or NSAIDs) if they make his/her asthma
Children and adolescents
Do not give this medicine to children less than 6 months of age.
There are different form(s) of this medicine available for paediatric patients under 18 years of age
based on age range.
Other medicines and SINGULAIR Paediatric
Tell your doctor or pharmacist if your child is taking or has recently been given or might be given
any other medicines including those obtained without a prescription.
Some medicines may affect how SINGULAIR Paediatric works, or SINGULAIR Paediatric may
affect how your child's other medicines work.
Tell your doctor if your child is taking the following medicines before starting SINGULAIR
• phenobarbital (used for treatment of epilepsy)
• phenytoin (used for treatment of epilepsy)
• rifampicin (used to treat tuberculosis and some other infections)
SINGULAIR Paediatric with food and drink
SINGULAIR Paediatric granules can be taken without regard to the timing of food intake.
Pregnancy and breast-feeding
This subsection is not applicable for the SINGULAIR Paediatric 4 mg granules since they are
intended for use in children 6 months to 5 years of age.
Driving and using machines
This subsection is not applicable for the SINGULAIR Paediatric 4 mg granules since they are
intended for use in children 6 months to 5 years of age, however the following information is
relevant to the active ingredient, montelukast.
SINGULAIR is not expected to affect your ability to drive a car or operate machinery. However,
individual responses to medication may vary.
Certain side effects (such as dizziness and drowsiness) that have been reported with SINGULAIR
may affect some patients’ ability to drive or operate machinery.

3. How to take SINGULAIR Paediatric
Always have your child take this medicine exactly as your doctor or pharmacist has told you.
Check with your child's doctor or pharmacist if you are not sure.
• This medicine is to be given to a child under adult supervision. Your child should take
SINGULAIR Paediatric every evening.
• It should be taken even when your child has no symptoms or if he/she has an acute asthma
For children 6 months to 5 years of age:
The recommended dose is one sachet of SINGULAIR Paediatric 4 mg granules to be taken by
mouth each evening.
If your child is taking SINGULAIR Paediatric, be sure that your child does not take any other
products that contain the same active ingredient, montelukast.
How should I give SINGULAIR Paediatric granules to my child?
This medicine is for oral use.
• Do not open the sachet until ready to use
• SINGULAIR Paediatric granules can be given either:
- directly in the mouth;
- OR mixed with a spoonful of cold or room temperature soft food (for example, applesauce,
ice cream, carrots and rice).
• Mix all of the contents of the SINGULAIR Paediatric granules into a spoonful of cold or room
temperature soft food, taking care to see that the entire dose is mixed with the food. Be sure
the child is given the entire spoonful of the granule/food mixture immediately (within
15 minutes). IMPORTANT: Never store any granule/food mixture for use at a later time.
• SINGULAIR Paediatric granules are not intended to be dissolved in liquid. However, your child
may take liquids after swallowing the SINGULAIR Paediatric granules.
• SINGULAIR Paediatric granules can be taken without regard to the timing of food intake.
If your child takes more SINGULAIR Paediatric than he/she should
Contact your child’s doctor immediately for advice.
There were no side effects reported in the majority of overdose reports. The most frequently
occurring symptoms reported with overdose in adults and children included abdominal pain,
sleepiness, thirst, headache, vomiting, and hyperactivity.
If you forget to give SINGULAIR Paediatric to your child
Try to give SINGULAIR Paediatric as prescribed. However, if your child misses a dose, just
resume the usual schedule of one sachet once daily.

Do not give a double dose to make up for a forgotten dose.

6. Further information

If your child stops taking SINGULAIR Paediatric
SINGULAIR Paediatric can treat your child’s asthma only if he/she continues taking it.
It is important for your child to continue taking SINGULAIR Paediatric for as long as your doctor
prescribes. It will help control your child’s asthma.

What SINGULAIR Paediatric contains
• The active substance is montelukast. Each sachet of granules contains montelukast sodium
which corresponds to 4 mg of montelukast.
• The other ingredients are: Mannitol, hyprolose and magnesium stearate.

If you have any further questions on the use of this medicine, ask your child’s doctor or

What SINGULAIR Paediatric looks like and contents of the pack
SINGULAIR Paediatric 4 mg granules are white granules.
SINGULAIR Paediatric 4 mg comes in cartons of 28 sachets.

4. Possible side effects
Like all medicines, this medicine can cause side effects, although not everybody gets them.
In clinical studies with SINGULAIR Paediatric 4 mg granules, the most commonly reported side
effects (occurring in at least 1 of 100 patients and less than 1 of 10 paediatric patients treated)
thought to be related to SINGULAIR Paediatric were:
• diarrhoea
• hyperactivity
• asthma
• scaly and itchy skin
• rash
Additionally, the following side effects were reported in clinical studies with either SINGULAIR
10 mg film-coated tablets, SINGULAIR Paediatric 5 mg or 4 mg chewable tablets:
• abdominal pain
• headache
• thirst
These were usually mild and occurred at a greater frequency in patients treated with SINGULAIR
than placebo (a pill containing no medication).
The frequency of possible side effects listed below is defined using the following convention:
Very common: may affect more than 1 in 10 people
Common: may affect up to 1 in 10 people
Uncommon: may affect up to 1 in 100 people
Rare: may affect up to 1 in 1,000 people
Very rare: may affect up to 1 in 10,000 people
Not known: frequency cannot be estimated from the available data

Manufacturer and Product Licence Holder
SINGULAIR Paediatric is manufactured by Merck Sharp & Dohme BV, Waarderweg 39, PO Box
581, 2003 PC Haarlem, The Netherlands. It is procured from within the EU by the Product
Licence Holder: Swinghope Ltd, Brandon House, Marlowe Way, Croydon CR0 4XS, UK.

PLPI 10380/1427
Leaflet revision date: 16/06/2016
SINGULAIR® is a registered trademark of Merck & Co., Inc., USA.
Information is given by
In UK: Asthma UK, Providence House, Providence Place, London N1 ONT. Alternatively phone
the Asthma UK Adviceline on 08457 010203, Monday to Friday 9 am to 5 pm, calls charged at
local rate.
In Ireland: The Asthma Society of Ireland, Eden House, 15-17 Eden Quay, Dublin 1. Alternatively
phone The Asthma Live Line on 01 8788122, Monday, Wednesday, Thursday 10am to 1pm, or 01
8788511 9am to 5pm, or The Asthma Line on callsave 1850 44 5464.
(The Asthma UK and The Asthma Society of Ireland are independent charities working to conquer
asthma and are not associated with Merck Sharp & Dohme Limited.)

Additionally, while the medicine has been on the market, the following have been reported:
• upper respiratory infection (Very common)
• increased bleeding tendency (Rare)
• allergic reactions including swelling of the face, lips, tongue, and/or throat which may cause
difficulty in breathing or swallowing (Uncommon)
• behaviour and mood related changes [dream abnormalities, including nightmares,
trouble sleeping, sleep walking, irritability, feeling anxious, restlessness, agitation including
aggressive behaviour or hostility, depression (Uncommon); tremor, disturbance in attention,
memory impairment (Rare); hallucinations, disorientation, suicidal thoughts and actions
(Very rare)]
• dizziness, drowsiness, pins and needles/numbness, seizure (Uncommon)
• palpitations (Rare)
• nosebleed (Uncommon), swelling (inflammation) of the lungs (Very rare)
• diarrhoea, nausea, vomiting (Common); dry mouth, indigestion (Uncommon)
• hepatitis (inflammation of the liver) (Very rare)
• rash (Common); bruising, itching, hives (Uncommon); tender red lumps under the skin most
commonly on your shins (erythema nodosum), severe skin reactions (erythema multiforme)
that may occur without warning (Very rare)
• joint or muscle pain, muscle cramps (Uncommon)
• fever (Common); weakness/tiredness, feeling unwell, swelling (Uncommon)
In asthmatic patients treated with montelukast, very rare cases of a combination of symptoms
such as flu-like illness, pins and needles or numbness of arms and legs, worsening of pulmonary
symptoms and/or rash (Churg-Strauss syndrome) have been reported. You must tell your doctor
right away if your child gets one or more of these symptoms (see section 2).
Reporting of side effects
If your child gets any side effects, talk to your doctor, pharmacist or nurse. This includes any
possible side effects not listed in this leaflet. You can also report side effects directly via the Yellow
Card Scheme at: By reporting side effects you can help provide
more information on the safety of this medicine.

5. How to store SINGULAIR Paediatric
Keep out of the sight and reach of children.
Do not use this medicine after the date shown by the six numbers following EXP on the sachet.
The first two numbers indicate the month; the last four numbers indicate the year. This medicine
expires at the end of the month shown.
Store in the original package in order to protect from light and moisture.
Medicines should not be disposed of via wastewater or household waste. Ask your pharmacist
how to dispose of medicines no longer required. These measures will help to protect the


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Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.