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  • Basic Info
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Generic: zafirlukast
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It is used to prevent and treat the symptoms of asthma

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What side effects may I notice from receiving this medicine?

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
  • breathing problems
  • chest pain or irregular heartbeat
  • dark urine
  • fever or infection
  • flu- like symptoms (chills, fatigue, fever, muscle aches)
  • hallucinations
  • pain and swelling of your sinuses
  • pain, tingling, numbness in the hands or feet
  • suicidal thoughts or other mood changes
  • trouble sleeping
  • 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
  • headache
  • nausea
  • pain
  • stomach upset
  • swelling in hands or feet

Where should I keep my medicine?

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.

Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.

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