Tamiflu (generic name: oseltamivir phosphate) is an antiviral medication used to treat and prevent influenza (flu) infections caused by influenza A and B viruses. It belongs to a class of medications known as neuraminidase inhibitors, which work by inhibiting the spread of the virus in the body.
Dosage:
The recommended dosage of Tamiflu for adults and adolescents aged 13 years and older is usually 75mg taken orally twice daily (once in the morning and once in the evening) for a duration of 5 days. However, in some cases, such as prevention of flu in close contacts of infected individuals, a lower dosage of 45mg once daily may be prescribed.
For children aged 1 to 12 years, the dosage is determined based on their body weight:
- Less than 15kg: 30mg twice daily
- 15kg to less than 23kg: 45mg twice daily
- 23kg to less than 40kg: 60mg twice daily
- 40kg or more: 75mg twice daily
Usage:
Tamiflu is typically used for the treatment and prevention of influenza in the following scenarios:
- Treatment of Influenza: Tamiflu is most effective when started within 48 hours of the onset of flu symptoms. It can help reduce the severity and duration of flu symptoms, including fever, cough, sore throat, nasal congestion, muscle aches, and fatigue.
- Prevention of Influenza: Tamiflu can also be used for the prevention of influenza in individuals who have been in close contact with someone diagnosed with the flu. It is recommended to start taking Tamiflu as soon as possible after exposure, ideally within 48 hours, and continue for 10 days.
It is important to take Tamiflu as prescribed by the healthcare provider. The capsules should be swallowed whole with water, with or without food. If swallowing the capsules is difficult, they can be opened and mixed with a sweetened liquid (e.g., chocolate syrup) to improve the taste.
Tamiflu is generally well-tolerated, but it can cause side effects such as nausea, vomiting, headache, and mild gastrointestinal disturbances. If any severe allergic reactions or unusual symptoms occur, it is important to seek medical attention immediately.
It’s worth noting that Tamiflu is a prescription medication, and the dosage and duration of treatment may vary based on individual factors and the specific recommendations of the prescribing healthcare provider. Therefore, it’s essential to consult a healthcare professional for accurate and personalized dosage instructions for Tamiflu.