Montelukast Chewable Tablets

What is this medication?

MONTELUKAST (mon te LOO kast) prevents and treats the symptoms of asthma and allergies. It works by decreasing inflammation in the airways, making it easier to breathe. Do not use this medication to treat a sudden asthma attack.

This medicine may be used for other purposes; ask your health care provider or pharmacist if you have questions.

COMMON BRAND NAME(S): Singulair

What should I tell my care team before I take this medication?

They need to know if you have any of these conditions:

• Liver disease
• Phenylketonuria
• An unusual or allergic reaction to montelukast, other medications, foods, dyes, or preservatives
• Pregnant or trying to get pregnant
• Breast-feeding

How should I use this medication?

Take this medication by mouth with water. Take it as directed on the prescription label at the same time every day. Chew or crush it completely before swallowing. Do not swallow tablets whole. You can take this medication with or without food. If it upsets your stomach, take it with food. Keep taking it unless your care team tells you to stop.

A special MedGuide will be given to you by the pharmacist with each prescription and refill. Be sure to read this information carefully each time.

Talk to your care team about the use of this medication in children. While it may be prescribed for children as young as 2 years for selected conditions, precautions do apply.

Overdosage: If you think you have taken too much of this medicine contact a poison control center or emergency room at once.

NOTE: This medicine is only for you. Do not share this medicine with others.

What if I miss a dose?

If you miss a dose, skip it. Take your next dose at the normal time. Do not take extra or 2 doses at the same time to make up for the missed dose.

What may interact with this medication?

• Medications for seizures like phenytoin, phenobarbital, and carbamazepine
• Rifabutin
• Rifampin

This list may not describe all possible interactions. Give your health care provider a list of all the medicines, herbs, non-prescription drugs, or dietary supplements you use. Also tell them if you smoke, drink alcohol, or use illegal drugs. Some items may interact with your medicine.

What should I watch for while using this medication?

Visit your health care provider for regular checks on your progress. Tell your health care provider if your allergy or asthma symptoms do not improve. Take your medication even when you do not have symptoms.

If you have asthma, talk to your health care provider about what to do in an acute asthma attack. Always have your inhaled rescue medication for asthma attacks with you.

Patients and their families should watch for new or worsening thoughts of suicide or depression. Also watch for sudden changes in feelings such as feeling anxious, agitated, panicky, irritable, hostile, aggressive, impulsive, severely restless, overly excited and hyperactive, or not being able to sleep. Any worsening of mood or thoughts of suicide or dying should be reported to your health care provider right away.

What side effects may I notice from receiving this medication?

Side effects that you should report to your care team as soon as possible:

• Allergic reactions—skin rash, itching, hives, swelling of the face, lips, tongue, or throat
• Flu-like symptoms—fever, chills, muscle pain, cough, headache, fatigue
• Mood and behavior changes such as anxiety, nervousness, confusion, hallucinations, irritability, hostility, thoughts of suicide or self-harm, worsening mood, feelings of depression
• Pain, tingling, or numbness in the hands or feet
• Sinus pain or pressure around the face or forehead
• Trouble sleeping
• Vivid dreams or nightmares

Side effects that usually do not require medical attention (report to your care team if they continue or are bothersome):

• Cough
• Diarrhea
• Headache
• Runny or stuffy nose
• Sore throat
• Stomach pain

This list may not describe all possible side effects. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Where should I keep my medication?

Keep out of the reach of children and pets.

Store at room temperature between 15 and 30 degrees C (59 and 86 degrees F). Protect from light and moisture. Keep the container tightly closed. Get rid of any unused medication after the expiration date.

To get rid of medications that are no longer needed or expired:

• Take the medication to a medication take-back program. Check with your pharmacy or law enforcement to find a location.
• If you cannot return the medication, check the label or package insert to see if the medication should be thrown out in the garbage or flushed down the toilet. If you are not sure, ask your care team. If it is safe to put in the trash, empty the medication out of the container. Mix the medication with cat litter, dirt, coffee grounds, or other unwanted substance. Seal the mixture in a bag or container. Put it in the trash.

NOTE: This sheet is a summary. It may not cover all possible information. If you have questions about this medicine, talk to your doctor, pharmacist, or health care provider.