Tamiflu

Tamiflu is an medication that blocks the actions of influenza virus types A and B in your body.
Tamiflu is an active component used to treat flu symptoms caused by influenza virus in patients who have had symptoms for less than 2 days. Tamiflu may also be given to prevent influenza in people who may be exposed but do not yet have symptoms. Tamiflu will not treat the common cold.
Tamiflu may also be used for other purposes not listed in this medication guide.

Tamiflu is an antiviral. It works by stopping the flu virus from reproducing within the body.

Tamiflu 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 Tamiflu.
Before taking Tamiflu, tell your doctor if you have used a nasal flu vaccine (FluMist) within the past 2 weeks, or if you have:

• kidney disease;
• heart disease;
• lung disease;
• a condition causing swelling or disorder of the brain; or
• any other serious disease or health problem.

Stop using Tamiflu and get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat; a red and blistering or peeling skin rash. Some people using Tamiflu 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 Tamiflu was the exact cause of these symptoms. However, anyone using Tamiflu should be watched closely for signs of confusion or unusual behavior. Call a doctor at once if you or the child using Tamiflu has any of these symptoms.

Less serious side effects may include:

• nausea, vomiting, diarrhea;
• dizziness, headache;
• nosebleed;
• eye redness or discomfort;
• sleep problems (insomnia); or
• cough or other respiratory symptoms.

Usual Adult Dose for Influenza Prophylaxis:
75 mg orally once a day

Usual Adult Dose for Influenza:
75 mg orally twice a day for 5 days

Usual Adult Dose for Avian Influenza:
Postexposure prophylaxis: 75 mg orally once or twice a day for 7 to 10 days. Treatment: Mild infection: 75 mg orally twice a day for 5 days. Severe infection: 150 mg twice a day for 7 to 10 days. Limited data are available.

Usual Pediatric Dose for Influenza:
Children 1 to 12 years (15 kg or less): 30 mg orally twice a day for 5 days, (16 to 23 kg): 45 mg orally twice a day for 5 days, (24 to 40 kg): 60 mg orally twice a day for 5 days, (41 kg or more): 75 mg orally twice a day for 5 days
13 years or older: 75 mg orally twice a day for 5 days

Usual Pediatric Dose for Influenza Prophylaxis:
1 to 12 years: (15 kg or less) 30 mg orally once a day for 10 days, (16 to 23 kg) 45 mg orally once a day for 10 days, (24 to 40 kg) 60 mg orally once a day for 10 days, (41 kg or more) 75 mg orally once a day for 10 days
13 years or older: 75 mg orally once a day

Usual Pediatric Dose for Avian Influenza:
Mild infection: Children 1 to 12 years: (15 kg or less) 30 mg orally twice a day, (16 to 23 kg) 45 mg orally twice a day, (24 to 40 kg) 60 mg orally twice a day, (41 kg or more) 75 mg orally twice a day
13 years or older: 75 mg orally twice a day