What should I tell my care team before I take this medication?
They need to know if you have any of these conditions:
- Churg-Strauss syndrome
- Liver disease
- Suicidal thoughts, plans, or attempt by you or a family member
- An unusual or allergic reaction to zafirlukast, other medications, foods, dyes, or preservatives
- Pregnant or trying to get pregnant
- Breast-feeding
What may interact with this medication?
Do not take this medication with any of the following:
This medication may also interact with the following:
- Aspirin
- Carbamazepine
- Cyclosporine
- Dofetilide
- Erythromycin or clarithromycin
- Medications for lowering heart rate or blood pressure like diltiazem, felodipine, nifedipine, quinidine, or verapamil
- Phenytoin
- Theophylline
- Tolbutamide
- Warfarin
This list may not describe all possible interactions. Give your health care provider a list of all the medicines, herbs, non-prescription drugs, or dietary supplements you use. Also tell them if you smoke, drink alcohol, or use illegal drugs. Some items may interact with your medicine.
What should I watch for while using this medication?
Visit your care team for regular checks on your progress. Let them know if your symptoms do not improve. Take your medication even when you do not have symptoms.
Talk to your care team about what to do in an acute asthma attack. Always have your inhaled rescue medication for asthma attacks with you.
Patients and their families should watch for new or worsening thoughts of suicide or depression. Also watch out 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 care team right away.