Generic Name: Zafirlukast (za FIR loo kast)
Brand Name: Accolate
Medically reviewed by Drugs.com. Last updated on Sep 3, 2019.
Uses of Zafirlukast:
- It is used to treat or prevent asthma.
- Do not use zafirlukast to treat an asthma attack. Use a rescue inhaler. Talk with your doctor.
What do I need to tell my doctor BEFORE I take Zafirlukast?
- If you have an allergy to zafirlukast or any other part of zafirlukast.
- If you are allergic to any drugs like this one, any other drugs, foods, or other substances. Tell your doctor about the allergy and what signs you had, like rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, or throat; or any other signs.
- If you have liver disease.
- If you are breast-feeding. Do not breast-feed while you take zafirlukast.
This is not a list of all drugs or health problems that interact with zafirlukast.
Tell your doctor and pharmacist about all of your drugs (prescription or OTC, natural products, vitamins) and health problems. You must check to make sure that it is safe for you to take zafirlukast with all of your drugs and health problems. Do not start, stop, or change the dose of any drug without checking with your doctor.
What are some things I need to know or do while I take Zafirlukast?
- Tell all of your health care providers that you take zafirlukast. This includes your doctors, nurses, pharmacists, and dentists.
- Call your doctor right away if your breathing problems get worse, if your rescue inhaler does not work as well, or if you need to use your rescue inhaler more often.
- Liver problems have happened with zafirlukast. Sometimes, this has been very bad and has led to the need for a liver transplant or death. Liver problems may happen in people with or without liver disease. Talk with the doctor.
- Have blood work checked as you have been told by the doctor. Talk with the doctor.
- If you are taking warfarin, talk with your doctor. You may need to have your blood work checked more closely while you are taking it with zafirlukast.
- If you are 65 or older, use zafirlukast with care. You could have more side effects.
- Tell your doctor if you are pregnant or plan on getting pregnant. You will need to talk about the benefits and risks of using zafirlukast while you are pregnant.
How is this medicine (Zafirlukast) best taken?
Use zafirlukast as ordered by your doctor. Read all information given to you. Follow all instructions closely.
- Keep taking zafirlukast even when you are not having symptoms.
- Take on an empty stomach. Take 1 hour before or 2 hours after meals.
- Take zafirlukast at the same time of day.
- To gain the most benefit, do not miss doses.
- Keep taking zafirlukast as you have been told by your doctor or other health care provider, even if you feel well.
What do I do if I miss a dose?
- Take a missed dose as soon as you think about it.
- If it is close to the time for your next dose, skip the missed dose and go back to your normal time.
- Do not take 2 doses at the same time or extra doses.
What are some side effects that I need to call my doctor about right away?
WARNING/CAUTION: Even though it may be rare, some people may have very bad and sometimes deadly side effects when taking a drug. Tell your doctor or get medical help right away if you have any of the following signs or symptoms that may be related to a very bad side effect:
- Signs of an allergic reaction, like rash; hives; itching; red, swollen, blistered, or peeling skin with or without fever; wheezing; tightness in the chest or throat; trouble breathing, swallowing, or talking; unusual hoarseness; or swelling of the mouth, face, lips, tongue, or throat.
- Signs of liver problems like dark urine, feeling tired, not hungry, upset stomach or stomach pain, light-colored stools, throwing up, or yellow skin or eyes.
- A burning, numbness, or tingling feeling that is not normal.
- Shortness of breath, a big weight gain, or swelling in the arms or legs.
- A heartbeat that does not feel normal.
- Chest pain.
- Change in the way you act.
- Mood changes.
- Low mood (depression).
- Not able to sleep.
- Sinus irritation.
- Flu-like signs.
- Fever or chills.
- Very bad sore throat.
What are some other side effects of Zafirlukast?
All drugs may cause side effects. However, many people have no side effects or only have minor side effects. Call your doctor or get medical help if any of these side effects or any other side effects bother you or do not go away:
These are not all of the side effects that may occur. If you have questions about side effects, call your doctor. Call your doctor for medical advice about side effects.
You may report side effects to the FDA at 1-800-FDA-1088. You may also report side effects at http://www.fda.gov/medwatch.
If OVERDOSE is suspected:
If you think there has been an overdose, call your poison control center or get medical care right away. Be ready to tell or show what was taken, how much, and when it happened.
How do I store and/or throw out Zafirlukast?
- Store in the original container at room temperature.
- Protect from light.
- Store in a dry place. Do not store in a bathroom.
- Keep all drugs in a safe place. Keep all drugs out of the reach of children and pets.
- Throw away unused or expired drugs. Do not flush down a toilet or pour down a drain unless you are told to do so. Check with your pharmacist if you have questions about the best way to throw out drugs. There may be drug take-back programs in your area.
Consumer information use
- If your symptoms or health problems do not get better or if they become worse, call your doctor.
- Do not share your drugs with others and do not take anyone else's drugs.
- Keep a list of all your drugs (prescription, natural products, vitamins, OTC) with you. Give this list to your doctor.
- Talk with the doctor before starting any new drug, including prescription or OTC, natural products, or vitamins.
- Some drugs may have another patient information leaflet. Check with your pharmacist. If you have any questions about zafirlukast, please talk with your doctor, nurse, pharmacist, or other health care provider.
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.
More about zafirlukast
- Side Effects
- During Pregnancy or Breastfeeding
- Dosage Information
- Drug Images
- Drug Interactions
- Pricing & Coupons
- En Español
- 4 Reviews
- Drug class: leukotriene modifiers
Other brands: Accolate