Zafirlukast Side Effects, Overdose and Pregnancy Information
Zafirlukast side effects are headache, dizziness, upset
stomach, allergic reaction, bronchitis, bruising, cough, and drowsiness. Other Zafirlukast side effects may include
fatigue, insomnia, irritability, itching, rash, restlessness, nausea, and vomiting.
Zafirlukast Side Effects Reporting
If you experience any Zafirlukast side effects not mentioned above you should report it to your primary health care provider or FDA 1-800-FDA-1088 in the United States, Health Canada 1-866-225-0709 in Canada, MHRA 020 3080 6000 in UK, or TGA 1800 020 653 in Australia.
Zafirlukast is a leukotriene receptor antagonist used to treat asthma as well as to relieve the stuffy, runny nose and sneezing caused by
seasonal allergies and hay fever. Leukotrienes are chemicals that occur naturally in the body that cause inflammation during asthma and seasonal allergies. Zafirlukast helps in the attack by blocking leukotreine from binding to tissue receptors; it is the binding to these tissues that stimulates the cells to cause inflammation. Zafirlukast can reduce the
frequency of asthma attack, if taken on a regular basis. However, Zafirlukast does not help during an asthma attack. Other quick action asthma drugs should be used during an acute attack. Zafirlukast starts working in about 3-14 days.
ZAFIRLUKAST WARNING
Zafirlukast should NOT be used during an asthma attack.
ZAFIRLUKAST INTERACTIONS
Check with your physician before combining Zafirlukast with the
following:
Blood thinners
Certain antibiotics like erythromycin
Phenobarbital
Rifampin
Aspirin increases the amount of Zafirlukast in the blood.
ZAFIRLUKAST AND PREGNANCY
Zafirlukast should only be used during pregnancy if considered
necessary. If you are or planning to become pregnant, inform your
physician right away. To be on the safe side, nursing mothers should switch to bottle-feed
while taking Zafirlukast.
ZAFIRLUKAST DOSES
ADULTS AND CHILDREN (age 12 and up)
20 mg twice daily, at least an hour before meal.
CHILDREN (age 5-11)
10 mg twice daily.
CHILDREN (age 2-5)
4 mg chewable/evening.
ZAFIRLUKAST OVERDOSE
Little is known about the effects of Zafirlukast overdose. If you suspect Zafirlukast overdose, seek medical help right away.
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