What should I tell my healthcare provider before taking ZITHROMAX?
Before you take ZITHROMAX, tell your healthcare provider if you:
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- have pneumonia
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- have cystic fibrosis
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- have known or suspected bacteremia (bacterial infection in the blood)
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- have liver or kidney problems
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- have an irregular heartbeat, especially a problem called "QT prolongation"
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- have a problem that causes muscle weakness (myasthenia gravis)
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- have any other medical problems
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- are pregnant or plan to become pregnant. It is not known if ZITHROMAX will harm your unborn baby.
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- are breastfeeding or plan to breastfeed. ZITHROMAX has been reported to pass into breast milk. Talk to your healthcare provider about the best way to feed your baby while you take ZITHROMAX.
Contact your healthcare provider immediately if you are giving ZITHROMAX to a young child (less than 6 weeks of age) and he or she vomits or becomes irritable when fed.
Tell your healthcare provider about all the medicines you take, including prescription and non-prescription medicines, vitamins, and herbal supplements.
ZITHROMAX and other medicines may affect each other causing side effects. ZITHROMAX may affect the way other medicines work, and other medicines may affect how ZITHROMAX works.
Especially tell your healthcare provider if you take:
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- nelfinavir
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- a blood thinner (warfarin)
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- digoxin
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- colchicine
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- phenytoin
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- an antacid that contains aluminum or magnesium
Know the medicines you take. Keep a list of your medicines and show it to your healthcare provider and pharmacist when you get a new medicine.