What is the most important information I should know about oseltamivir?
Oseltamivir is used to treat flu symptoms caused by influenza virus in patients who have
had symptoms for less than 2 days. Oseltamivir may also be given to prevent influenza in people
who may be exposed but do not yet have symptoms. Oseltamivir will not treat the common cold.
Before taking oseltamivir, tell your doctor if you have received a nasal flu vaccine within
the past 2 weeks, or if you have kidney disease, heart disease, lung disease, or any other serious
disease or health problem. Also tell your doctor if you have any condition causing swelling or
disorder of the brain.
Treatment with oseltamivir should start as soon as possible when flu symptoms appear,
such as fever, chills, muscle aches, sore throat, and runny or stuffy nose.
Take this medication for as many days as it has been prescribed for you even if you
begin to feel better. Your symptoms may start to improve before the infection is completely
treated.
Some people using oseltamivir have had rare side effects of sudden confusion,
delirium,
hallucinations, unusual behavior, or self-injury. These symptoms have occurred most
often in children. It is not known whether oseltamivir was the exact cause of these symptoms.
However, anyone using oseltamivir should be watched closely for signs of confusion or unusual
behavior. Call a doctor at once if you or the child using oseltamivir has any of these symptoms.
Oseltamivir should not be used in place of getting a yearly flu shot. The
Centers for
Disease Control recommends an annual flu shot to help protect you each year from new strains of
influenza virus.
What is oseltamivir?
Oseltamivir is an antiviral medication that blocks the actions of influenza virus types A
and B in your body.
Oseltamivir is used to treat flu symptoms caused by influenza virus in patients who have
had symptoms for less than 2 days. Oseltamivir may also be given to prevent influenza in people
who may be exposed but do not yet have symptoms. Oseltamivir will not treat the common cold.
Oseltamivir may also be used for other purposes not listed in this medication guide.
What should I discuss with my healthcare provider before using oseltamivir?
Oseltamivir should not be used in place of getting a yearly flu shot. The Centers for
Disease Control recommends an annual flu shot to help protect you each year from new strains of
influenza virus.
You should not use this medication if you are allergic to oseltamivir.
Before taking oseltamivir, tell your doctor if you have used a nasal flu vaccine (FluMist)
within the past 2 weeks, or if you have:
If you have any of the conditions listed above, you may need a dose
adjustment or special tests to safely take this medication.
FDA pregnancy category C. This medication may be harmful to an unborn baby. Tell
your doctor if you are
pregnant or plan to become pregnant during treatment.
It is not known whether oseltamivir passes into breast
milk or if it could harm a
nursing baby. Do not take this medication without telling your doctor if you are
breast-feeding a
baby.
Do not give this medication to a child younger than 1 year old.
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