Full instructions, dosage information and potential known side effects are all available in the leaflet that comes with the prescription product. If you require any advice or assistance with placing your order, please donâ€™t hesitate to contact our team.
How do I take/use this medicine?
Take Zafirlukast exactly as directed. Do not take more or less than instructed by your doctor.
Zafirlukast must be taken regularly for it to work well. Do not stop taking it unless instructed by your doctor. Your condition may worsen if the medicine is stopped suddenly. Zafirlukast cannot relieve an acute asthma attack. You should continue to keep your "rescue" inhaler by your side at all times.
Take Zafirlukast on an empty stomach, at least 1 hour before or 2 hours after a meal. Try to take it at the same time each day.
What should I take note of while using/taking this medicine?
Alert your doctor if your asthma symptoms seem worse or if you need to use your "rescue" inhaler more often.
Zafirlukast will not relieve an acute attack of asthma. You must use "rescue medicines" such as an inhaler to treat an acute attack of asthma. Ask your doctor about what you should do when you have an acute asthma attack.
Your doctor will also order regular blood tests to make sure that your liver function is normal. It is important that you keep your appointments with your doctor.
When should I not use this medicine?
Inform your doctor if you suffer from kidney or liver disease.
Inform your doctor if you are pregnant or breastfeeding.
Do not breastfeed while you are being treated with Zafirlukast.
Do not give Zafirlukast to children unless instructed by the child's doctor. Zafirlukast is not recommended for children 5 years old or younger.
Are there any restrictions on the type of food I can take?
Why do I need this medicine?
Zafirlukast is used to treat asthma.
When taken regularly, Zafirlukast helps to prevent the chest tightness, wheezing and breathlessness that is common in asthma.
Zafirlukast is meant to be taken long-term. It is not meant for fast relief during acute asthma attacks.
What side effects could I experience?
Zafirlukast may cause dizziness. If you feel dizzy, do not drive or take part in any activity in which you need to be alert.
Headache, stomach discomfort such as nausea, indigestion or diarrhoea and flu-like symptoms are common side effects of Zafirlukast. These side effects are usually mild and should get better as your body adjusts to the medicine. If these problems persist or get worse, let your doctor know. Do not stop taking your medicine unless instructed to do so.
Less commonly, Zafirlukast may cause some side effects which can be serious. Alert your doctor quickly if you experience pain at or near the stomach area, severe or prolonged nausea, tiredness, itchy skin, yellowing of your skin or the whites of your eyes, or if you lose your appetite.
How should I store this medicine?
Store in a cool, dry place away from the reach of children.
Medicines must not be used past the expiry date.
Can I take/use this with other medicines?
Inform your doctor if you are taking any other medicines, especially those listed here:
- warfarin (a blood-thinning medicine)
- amlodipine and other similar heart medicines
- antibiotics such as erythromycin
- other asthma medicines, especially theophylline
Always inform your doctor or pharmacist if you are taking any other medicines, including herbal tonics, supplements and medicines that you buy without a prescription.