Our Health Library information does not replace the advice of a doctor. Please be advised that this information is made available to assist our patients to learn more about their health. Our providers may not see and/or treat all topics found herein.

Montelukast Oral Granules (MONTELUKAST GRANULES - ORAL)

This medicine is used for the following purposes:

  • allergy symptoms
  • prevent asthma attacks
  • asthma

Brand Name(s): Singulair

Generic Name: Montelukast

Instructions

Mix the contents of each packet in 5 mL (1 teaspoon) of applesauce or apple juice, then swallow.

This medicine may be taken with or without food.

This medicine will work best if you take it at about the same time every day.

Keep this medicine at room temperature. Protect from moisture and high humidity.

It is important that you keep taking each dose of this medicine on time even if you are feeling well.

If you forget to take a dose on time, take it as soon as you remember. If it is almost time for the next dose, do not take the missed dose. Return to your normal schedule. Do not take 2 doses at one time.

Tell your doctor and pharmacist about all your medicines. Include prescription and over-the-counter medicines, vitamins, and herbal medicines.

This medicine will not stop an asthma attack once it has started. If you have an inhaler to stop an asthma attack, be sure to always carry that inhaler with you to use during an asthma attack.

Do not suddenly stop taking this medicine. Check with your doctor before stopping.

Cautions

Tell your doctor and pharmacist if you ever had an allergic reaction to a medicine.

Do not use the medication any more than instructed.

Tell the doctor or pharmacist if you are pregnant, planning to be pregnant, or breastfeeding.

Do not start or stop any other medicines without first speaking to your doctor or pharmacist.

Do not share this medicine with anyone who has not been prescribed this medicine.

Some patients have serious side effects from this medicine. Ask your pharmacist to show you the information from the Food and Drug Administration (FDA) and discuss it with you.

Side Effects

The following is a list of some common side effects from this medicine. Please speak with your doctor about what you should do if you experience these or other side effects.

  • mood changes

Call your doctor or get medical help right away if you notice any of these more serious side effects:

  • agitated feeling or trouble sleeping
  • depression or feeling sad
  • bad dreams
  • hallucinations (unusual thoughts, seeing or hearing things that are not real)
  • muscle aches, spasms or abnormal movements
  • unusual behavior during sleep such as walking, talking, cooking, eating, making phone calls or driving
  • stuttering
  • suicidal thoughts

A few people may have an allergic reaction to this medicine. Symptoms can include difficulty breathing, skin rash, itching, swelling, or severe dizziness. If you notice any of these symptoms, seek medical help quickly.

Please speak with your doctor, nurse, or pharmacist if you have any questions about this medicine.