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ZAFIRLUKAST (za FIR loo kast) is used to prevent and treat the symptoms of asthma. Do not use for an acute asthma attack.
Take this medicine by mouth on an empty stomach, at least 1 hour before or 2 hours after meals. Follow the directions on your prescription label. Do not take your medicine more often than directed. Do not stop taking your medicine unless your doctor tells you to.
Talk to your pediatrician regarding the use of this medicine in children. While this drug may be prescribed for children as young as 5 years of age for selected conditions, precautions do apply.
Side effects that you should report to your doctor or health care professional as soon as possible:
allergic reactions like skin rash or hives, or swelling of the face, lips, or tongue
chest pain or irregular heartbeat
general ill feeling or flu-like symptoms
loss of appetite, nausea
pain and swelling of your sinuses
right upper belly pain
pain, tingling, numbness in the hands or feet
suicidal thoughts or other mood changes
unusually weak or tired
yellowing of the skin or eyes
Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):
bleeding or bruising
Do not take this medicine with any of the following medications:
This medicine may also interact with the following medications:
erythromycin or clarithromycin
medicines for lowering heart rate or blood pressure like diltiazem, felodipine, nifedipine, quinidine, or verapamil
If you miss a dose, use it as soon as you can. If it is almost time for the next dose, skip the previous dose. Do not use double or extra doses.
Keep out of the reach of children.
Store at room temperature between 20 and 25 degrees C (68 and 77 degrees F). Do not freeze. Protect from light and moisture. Throw away any unused medicine after the expiration date.
They need to know if you have any of these conditions:
suicidal thoughts, plans, or attempt; a previous suicide attempt by you or a family member
an unusual or allergic reaction to zafirlukast, other medicines, foods, dyes, or preservatives
pregnant or trying to get pregnant
Visit your doctor or health care professional for regular checks on your progress. Let them know if your symptoms do not improve. Take your medicine even when you do not have symptoms.
Talk to your doctor about what to do in an acute asthma attack. Always have your inhaled rescue medicine 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 professional right away.
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