Singulair (Montelukast Sodium) Medication Information
Singulair is a selective leukotriene receptor antagonist used to relieve symptoms of allergic rhinitis, asthma, and prevent exercise-induced bronchoconstriction.
The capsule is available in 4 mg strength, chewable tablets are available in 5mg and 4mg strength, and a film-coated tablet is available in 10mg strength.
The most common side effects of Singulair include:
- Runny nose
- Sore throat
- Earache or ear infection
- Sinus Infection
- Stomach Pain
- Upper respiratory infection
Speak with your doctor for a full list of side effects that apply to you if you are taking Montelukast.
Patients that are sensitive to aspirin should avoid aspirin or non-steroidal anti-inflammatory agents while taking Singulair.
Patients should have rescue medication at their disposable because Singular does not treat acute asthma attacks.
It has been shown for neuropsychiatric events to potentially occur when taking Montelukast.
The chewable tablet formulation contains phenylalanine and should not be taking in those with phenylketonuria.
Adjusting dose is not required when Singulair is used in addition with prednisone, prednisolone, benzodiazepines, decongestants, thyroid hormones, oral contraceptives, warfarin, and digoxin.
Store at 68°F to 77°F in a clean dry place and away from light.
- If you missed a dose, skip the missed dose and return to your usual routine.
- If you are taking Singulair for asthma, take it in the evening.
- Do not double up dose at one instance if a dose was forgotten.
- If you experience behavioral changes while taking Singulair, talk to your healthcare provider immediately.
- If you are using Montelukast for exercise-induced asthma, take the medication two hours before exercise.
Can I just stop taking Singulair?
If you stop taking Singulair, you may increase the risk of asthma attacks. Consider talking to your doctor before stopping.
Why do you have to take Singulair at night?
Symptoms of asthma are typically worse at night.
Is Singulair a steroid?
No, Montelukast is not a steroid.
How long does Singulair take to start working?
Singulair takes about 3 to 7 days to start working.
What should you not take with Singulair?
Aspirin and NSAIDs should be avoided while on Singulair.
Author: Dr. Larisa Roybal, PharmD
Dr. Roybal is a board-certified pharmacotherapy specialist who has practiced in both ambulatory and acute care settings. Her pharmacy interests include oncology and general inpatient pharmacy.
The above information is an educational aid only. It is not intended as medical advice for individual conditions or treatments. Talk to your doctor, nurse or pharmacist before following any medical regimen to see if it is safe and effective for you.