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Tamiflu

Tamiflu

Oseltamivir belongs to the family of medications called antivirals. It is used to treat the Influenza viruses that cause the flu.

Available form

Dosage

Capsule

30MG, 45MG, 75MG

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Tamiflu information

Dosage

Side Effects

Available Form

Contraindications

Precautions

Warnings

The recommended adult (13 years of age and above) dose of oseltamivir for treatment of influenza is 75 mg, taken twice a day starting within 2 days of the onset of flu symptoms and continuing for 5 days. It can be taken with or without food. If stomach upset occurs, take it with food.

For children (1 to 12 years) the dosage is based on the body weight of the child. The appropriate dose is taken twice a day.

To prevent influenza, oseltamivir should be started within 2 days of close contact with an infected person, after symptoms start appearing. The usual dose of oseltamivir for the prevention of influenza in adults is 75 mg, taken once a day for 10 days. The dosage for children is based on body weight, taken once a day. Children and seniors should take oseltamivir for at least 10 days, though they may often continue therapy for up to 14 days.

If you are using the liquid form of Tamiflu, use an oral syringe to measure each dose, as it gives a more accurate measurement than household teaspoons. If the liquid is not available, the capsules may be opened and mixed with a small amount of a sweetened liquid, such as chocolate syrup.

Finish all Tamiflu, even if you have started to feel better.

Many things can affect the dose of a medication that a person needs, such as body weight, other medical conditions, and other medications. If your doctor has recommended a dose different from the ones listed here, do not change the way that you are taking the medication without consulting your doctor.

It is important that Tamiflu be taken exactly as prescribed by your doctor. If you miss a dose, take it as soon as possible and continue with your regular schedule. If it is almost time for your next dose, skip the missed dose and continue with your regular dosing schedule. Do not take a double dose to make up for a missed one. If you are not sure what to do after missing a dose, contact your doctor or pharmacist for advice.

Store Tamiflu at room temperature and keep it out of the reach of children. The oral suspension may be stored at room temperature for 10 days from the day of mixing, or in the refrigerator for 17 days from the day of mixing. Shake well before each use.

Do not dispose of medications in wastewater (e.g. down the sink or in the toilet) or in household garbage. Ask your pharmacist how to dispose of medications that are no longer needed or have expired.

Before you begin using a medication, be sure to inform your doctor of any medical conditions or Allergies you may have, any medications you are taking, whether you are pregnant or breast-feeding, and any other significant facts about your health. These factors may affect how you should use Tamiflu.

Effectiveness: The benefit of oseltamivir has not been evaluated for the treatment of flu symptoms that have been present for more than 2 days.

Flu shots: Oseltamivir is not a substitute for the flu shot. Continue to receive an annual flu shot as advised by your doctor.

Fructose intolerance: The liquid suspension form of Tamiflu contains sorbitol, making it inappropriate for people with hereditary fructose intolerance. If you have fructose intolerance, you should not take the liquid form of oseltamivir.

Kidney function: Kidney Disease or reduced kidney function may cause Tamiflu to build up in the body, causing side effects. If you have reduced kidney function or kidney disease, discuss with your doctor how Tamiflu may affect your medical condition, how your medical condition may affect the dosing and effectiveness of Tamiflu, and whether any special monitoring is needed.

Liver function: Oseltamivir may also cause decreased liver function, and liver failure in rare cases. If you experience symptoms of liver problems such as fatigue, feeling unwell, loss of appetite, nausea, yellowing of the skin or whites of the eyes, dark urine, pale stools, abdominal pain or swelling, and itchy skin, contact your doctor immediately.

Neurological effects: There have been rare reports of people who have experienced neurological and psychological problems while taking oseltamivir. These included hallucinations, delusions, delirium, abnormal behaviour, and self-injury. If you experience any of these symptoms, seek immediate medical attention. If you have any concerns about Tamiflu, contact your doctor.

Pregnancy: Tamiflu should not be used during pregnancy unless the benefits outweigh the risks. If you become pregnant while taking Tamiflu, contact your doctor immediately.

Breast-feeding: Tamiflu passes into breast milk. If you are a breast-feeding mother and are taking oseltamivir, it may affect your baby. Talk to your doctor about whether you should continue breast-feeding. Mothers who are breast-feeding children under one year old should not take Tamiflu.

Children: The safety and effectiveness of using Tamiflu have not been established for children under one year of age.

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