Tamiflu, which is generically known as oseltamivir, is part of a family of flu fighting medicines called neuraminidase inhibitors. Tamilflu is used in the treatment of viral infections caused by the influenza A and influenza B viruses. This treatment has shown to be effective in fighting these viruses if treatment starts within two days of the onset of flu symptoms. Tamiflu works by blocking the advance of the viral infection and thus giving the body's immune system a better chance for fighting the virus. Tamiflu can help you get back to being healthy fast.

The current Asian outbreak of avian flu, also known as bird flu, is associated with the influenza A strain H5N1 flu virus. Although not the same as the Spanish flu virus that claimed 20 million to 50 million lives worldwide in the 1918 outbreak, the current avian flu strain does share many characteristics with the 1918 strain. Both scientists and governments around the world are studying this threat very closely and some have warned of the potential for another pandemic outbreak. Initial studies have shown that Tamiflu may be effective in helping to fight the effects of this flu virus if the medication is taken very early after flu symptoms appear.

Oseltamivir, sold under the brand name Tamiflu, is one of several antiviral medications approved by the U.S. Food and Drug Administration for the treatment and prevention of influenza. Flu shots are still the best way to prevent someone from developing the flu, but as of this writing no vaccine is available to protect humans from the avian H5N1 influenza virus. According to the CDC, development of a vaccine has begun.

For more information about avian influenza, visit the Centers for Disease Control and Prevention Web site. http://www.cdc.gov/avian/

Oseltamivir is an antiviral medication. It blocks the actions of viruses in your body.
Oseltamivir is used to treat illness due to influenza virus in patients who have had symptoms for less than 2 days. Oseltamivir is also used to prevent infection with the influenza virus.
Oseltamivir may also be used for purposes other than those listed in this medication guide

Take oseltamivir exactly as directed by your doctor. If you do not understand these directions, ask your pharmacist, nurse, or doctor to explain them to you.
Take each capsule with a full glass of water.
Shake the suspension well before measuring a dose. To ensure that you get the correct dosage, measure the liquid form of oseltamivir with a dose-measuring spoon or cup, not a regular table spoon. If you do not have a dose-measuring device, ask your pharmacist where you can get one.
Oseltamivir can be taken with or without food. Taking oseltamivir with food may decrease stomach upset.
Oseltamivir is usually taken twice a day for 5 days. Follow your doctor's instructions.
Treatment with oseltamivir should begin as soon as possible from the first appearance of flu symptoms.
Take all of the oseltamivir that has been prescribed for you even if you begin to feel better. Your symptoms may start to improve before the infection is completely treated.
You should also discuss the importance of a flu shot with your doctor.
Store oseltamivir capsules at room temperature away from moisture and heat. Store the suspension in the refrigerator. Throw away any unused suspension after 10 days.

Stop taking oseltamivir and seek emergency medical attention if you experience an allergic reaction (difficulty breathing; closing of your throat; swelling of your lips, tongue, or face; or hives).
Other, less serious side effects may be more likely to occur. Continue to take oseltamivir and talk to your doctor if you experience
· nausea, vomiting, or diarrhea;
· abdominal pain;
· headache;
· dizziness;
· fatigue;
· insomnia; or
· cough or other respiratory symptoms.
Side effects other than those listed here may also occur. Talk to your doctor about any side effect that seems unusual or that is especially bothersome.