Singulair

Singulair helps control asthma symptoms by blocking substances called leukotrienes that cause narrowing and swelling in the airways.

Form
purutabletti
Strength
4 mg
Active Ingredient
Montelukast sodium
Manufacturer
N.V. Organon

How to Use

Dosage

The recommended dose is one 4 mg chewable tablet once daily in the evening.

Method

This medicine is taken by mouth. The tablet should be chewed before swallowing. Do not take the tablet immediately after a meal; take it at least one hour before or two hours after a meal.

Important

Give your child only one Singulair chewable tablet once daily as directed by the doctor.

Possible Side Effects

COMMON
  • abdominal pain
  • thirst
  • headache
  • upper respiratory tract infection
  • diarrhea, nausea, vomiting
  • rash
  • fever
  • elevated liver enzymes
RARE
  • allergic reactions, including swelling of the face, lips, tongue and/or throat, which may cause difficulty breathing or swallowing
  • behavior and mood changes, such as anxiety, aggressive behavior, hostility, depression, abnormal dreams, nightmares, insomnia, sleepwalking, irritability, restlessness, hallucinations, confusion, suicidal thoughts and actions, obsessive-compulsive symptoms, stuttering
  • seizures
  • increased bleeding tendency
  • tremor
  • palpitations
  • a combination of symptoms, such as flu-like symptoms, tingling or numbness in the arms and legs, worsening lung symptoms, and/or rash (Churg-Strauss syndrome)
  • low platelet count
  • swelling (inflammation) in the lungs
  • severe skin reactions (erythema multiforme)
  • liver inflammation (hepatitis)
  • dizziness, drowsiness, tingling/numbness
  • nosebleed
  • dry mouth, indigestion
  • bruising, itching, hives
  • joint or muscle pain, muscle cramps
  • bedwetting in children
  • weakness/fatigue, general feeling of being unwell, swelling
  • attention problems, memory loss, involuntary muscle movements
  • red tender lumps under the skin, usually on the shins (erythema nodosum)

Important Warnings

  • Do not give Singulair if your child is allergic to montelukast or any other ingredients in the medicine.
  • If your child's asthma gets worse or breathing becomes difficult, tell the doctor right away.
  • Singulair is not for treating sudden asthma attacks. Always carry your child's rescue inhaler for attacks as directed by the doctor.
  • It's important that your child takes all other asthma medications as prescribed by the doctor. Singulair does not replace other asthma medicines prescribed by your doctor.
  • Contact a doctor if your child experiences flu-like symptoms, tingling or numbness in the arms or legs, worsening lung symptoms, or rash while taking asthma medication.
Show 5 more warnings
  • Do not give your child aspirin or NSAIDs (non-steroidal anti-inflammatory drugs) if they make their asthma worse.
  • Behavior and mood changes, such as depression or suicidal thoughts, have been reported with montelukast. If your child experiences such symptoms, contact the doctor immediately.
  • Do not give this medicine to children under 2 years of age.
  • If your child is taking Singulair, make sure they do not take other medicines containing the same active ingredient, montelukast.
  • This medicine contains aspartame, which is a source of phenylalanine. It may be harmful if your child has a rare inherited disease called phenylketonuria (PKU).